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-- Autoconf --

Process this file with autoconf to produce a configure script.

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Autoconf initialization.

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AC_PREREQ([2.69]) AC_INIT([htop], [3.2.1], [htop@groups.io], [], [https://htop.dev/])

AC_CONFIG_SRCDIR([htop.c]) AC_CONFIG_AUX_DIR([build-aux]) AC_CONFIG_HEADERS([config.h])

AC_CANONICAL_HOST AM_INIT_AUTOMAKE([-Wall std-options subdir-objects])

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Checks for platform.

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case "$host_os" in linux|gnu) my_htop_platform=linux AC_DEFINE([HTOP_LINUX], [], [Building for Linux.]) ;; freebsd|kfreebsd) my_htop_platform=freebsd AC_DEFINE([HTOP_FREEBSD], [], [Building for FreeBSD.]) ;; netbsd) my_htop_platform=netbsd AC_DEFINE([HTOP_NETBSD], [], [Building for NetBSD.]) ;; openbsd) my_htop_platform=openbsd AC_DEFINE([HTOP_OPENBSD], [], [Building for OpenBSD.]) ;; dragonfly) my_htop_platform=dragonflybsd AC_DEFINE([HTOP_DRAGONFLYBSD], [], [Building for DragonFlyBSD.]) ;; darwin) my_htop_platform=darwin AC_DEFINE([HTOP_DARWIN], [], [Building for Darwin.]) ;; solaris) my_htop_platform=solaris AC_DEFINE([HTOP_SOLARIS], [], [Building for Solaris.]) ;; ) my_htop_platform=unsupported AC_DEFINE([HTOP_UNSUPPORTED], [], [Building for an unsupported platform.]) ;; esac

Enable extensions, required by hwloc scripts

AC_USE_SYSTEM_EXTENSIONS

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Checks for compiler.

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AC_PROG_CC AM_PROG_CC_C_O m4_version_prereq([2.70], [], [AC_PROG_CC_C99]) AS_IF([test "x$ac_cv_prog_cc_c99" = xno], [AC_MSG_ERROR([htop is written in C99. A newer compiler is required.])])

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Checks for static build.

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AC_ARG_ENABLE([static], [AS_HELP_STRING([--enable-static], [build a static htop binary @:@default=no@:@])], [], [enable_static=no]) case "$enable_static" in no) ;; yes) AC_DEFINE([BUILD_STATIC], [1], [Define if building static binary.]) CFLAGS="$CFLAGS -static" LDFLAGS="$LDFLAGS -static" ;; *) AC_MSG_ERROR([bad value '$enable_static' for --enable-static option]) ;; esac

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Checks for a PCP-based htop build. (https://pcp.io)

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AC_ARG_ENABLE([pcp], [AS_HELP_STRING([--enable-pcp], [build a pcp-htop binary @:@default=no@:@])], [], [enable_pcp=no]) case "$enable_pcp" in no) ;; yes) AC_CHECK_HEADERS([pcp/pmapi.h], [my_htop_platform=pcp], [AC_MSG_ERROR([can not find PCP header file])]) AC_SEARCH_LIBS([pmNewContext], [pcp], [], [AC_MSG_ERROR([can not find PCP library])]) AC_DEFINE([HTOP_PCP], [1], [Define if building pcp-htop binary.]) AC_CONFIG_FILES([pcp-htop.5]) ;; *) AC_MSG_ERROR([bad value '$enable_pcp' for --enable-pcp option]) ;; esac

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Checks for generic header files.

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AC_HEADER_DIRENT m4_version_prereq([2.70], [AC_CHECK_INCLUDES_DEFAULT], [AC_HEADER_STDC]) AC_CHECK_HEADERS([ \ stdlib.h \ string.h \ strings.h \ sys/param.h \ sys/time.h \ sys/utsname.h \ unistd.h ], [], [AC_MSG_ERROR([can not find required generic header files])])

AC_HEADER_MAJOR dnl glibc 2.25 deprecates 'major' and 'minor' in and requires to dnl include . However the logic in AC_HEADER_MAJOR has not yet dnl been updated in Autoconf 2.69, so use a workaround: m4_version_prereq([2.70], [], [if test "x$ac_cv_header_sys_mkdev_h" != xyes; then AC_CHECK_HEADER([sys/sysmacros.h], [AC_DEFINE([MAJOR_IN_SYSMACROS], [1], [Define to 1 if major',minor', and `makedev' are declared in .])]) fi])

Optional Section

AC_CHECK_HEADERS([execinfo.h])

if test "$my_htop_platform" = darwin; then AC_CHECK_HEADERS([mach/mach_time.h]) fi

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Checks for typedefs, structures, and compiler characteristics.

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AC_TYPE_PID_T AC_TYPE_UID_T AC_TYPE_UINT8_T AC_TYPE_UINT16_T AC_TYPE_UINT32_T AC_TYPE_UINT64_T

AC_MSG_CHECKING(for alloc_size) old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wno-error -Werror=attributes" AC_COMPILE_IFELSE([ AC_LANG_SOURCE( [ attribute((alloc_size(1))) char* my_alloc(int size) { return 0; } ],[] )], AC_DEFINE([HAVE_ATTR_ALLOC_SIZE], 1, [The alloc_size attribute is supported.]) AC_MSG_RESULT(yes), AC_MSG_RESULT(no)) CFLAGS="$old_CFLAGS"

AC_MSG_CHECKING(for NaN support) AC_RUN_IFELSE([ AC_LANG_PROGRAM( [[ #include ]], [[ double x = NAN; return !isnan(x); ]] )], [AC_MSG_RESULT(yes)], [ AC_MSG_RESULT(no) AC_MSG_WARN([Compiler does not respect NaN, some functionality might break; consider using '-fno-finite-math-only']) ], [AC_MSG_RESULT(skipped)])

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Checks for generic library functions.

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AC_CHECK_LIB([m], [ceil], [], [AC_MSG_ERROR([can not find required function ceil()])])

if test "$my_htop_platform" = dragonflybsd; then AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])]) fi

if test "$my_htop_platform" = freebsd; then if test "$enable_static" = yes; then AC_SEARCH_LIBS([elf_version], [elf], [], [AC_MSG_ERROR([can not find required function elf_version()])]) fi AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])]) AC_SEARCH_LIBS([devstat_checkversion], [devstat], [], [AC_MSG_ERROR([can not find required function devstat_checkversion()])]) fi

if test "$my_htop_platform" = linux; then if test "$enable_static" != yes; then AC_SEARCH_LIBS([dlopen], [dl dld], [], [AC_MSG_ERROR([can not find required function dlopen()])]) fi fi

if test "$my_htop_platform" = netbsd; then AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])]) AC_SEARCH_LIBS([prop_dictionary_get], [prop], [], [AC_MSG_ERROR([can not find required function prop_dictionary_get()])]) fi

if test "$my_htop_platform" = openbsd; then AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])]) fi

if test "$my_htop_platform" = solaris; then AC_SEARCH_LIBS([kstat_open], [kstat], [], [AC_MSG_ERROR([can not find required function kstat_open()])]) AC_SEARCH_LIBS([Pgrab_error], [proc], [], [AC_MSG_ERROR([can not find required function Pgrab_error()])]) AC_SEARCH_LIBS([free], [malloc], [], [AC_MSG_ERROR([can not find required function free()])]) fi

Optional Section

AC_SEARCH_LIBS([clock_gettime], [rt])

AC_CHECK_FUNCS([ \ clock_gettime \ dladdr \ faccessat \ fstatat \ host_get_clock_service \ memfd_create\ openat \ readlinkat \ ])

if test "$my_htop_platform" = darwin; then AC_CHECK_FUNCS([mach_timebase_info]) fi

if test "$my_htop_platform" = linux && test "x$enable_static" = xyes; then AC_CHECK_LIB([systemd], [sd_bus_open_system]) fi

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Checks for cross-platform features and flags.

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HTOP_CHECK_SCRIPT(LIBNAME, FUNCTION, DEFINE, CONFIG_SCRIPT, ELSE_PART)

m4_define([HTOP_CHECK_SCRIPT], [ if test ! -z "m4_toupper($HTOP_[$1]CONFIG_SCRIPT)"; then # to be used to set the path to ncurses*-config when cross-compiling htop_config_script_libs=$(m4_toupper($HTOP[$1]CONFIG_SCRIPT) --libs 2> /dev/null) htop_config_script_cflags=$(m4_toupper($HTOP[$1]_CONFIG_SCRIPT) --cflags 2> /dev/null) else htop_config_script_libs=$([$4] --libs 2> /dev/null) htop_config_script_cflags=$([$4] --cflags 2> /dev/null) fi htop_script_success=no htop_save_CFLAGS="$CFLAGS" if test ! "x$htop_config_script_libs" = x; then CFLAGS="$htop_config_script_cflags $CFLAGS" AC_CHECK_LIB([$1], [$2], [ AC_DEFINE([$3], 1, [The library is present.]) LIBS="$htop_config_script_libs $LIBS " htop_script_success=yes ], [ CFLAGS="$htop_save_CFLAGS" ], [ $htop_config_script_libs ]) fi if test "x$htop_script_success" = xno; then [$5] fi ])

HTOP_CHECK_LIB(LIBNAME, FUNCTION, DEFINE, ELSE_PART)

m4_define([HTOP_CHECK_LIB], [ AC_CHECK_LIB([$1], [$2], [ AC_DEFINE([$3], [1], [The library is present.]) LIBS="-l[$1] $LIBS " ], [$4]) ])

AC_ARG_ENABLE([unicode], [AS_HELP_STRING([--enable-unicode], [enable Unicode support @:@default=yes@:@])], [], [enable_unicode=yes]) if test "x$enable_unicode" = xyes; then HTOP_CHECK_SCRIPT([ncursesw6], [waddwstr], [HAVE_LIBNCURSESW], "ncursesw6-config", HTOP_CHECK_SCRIPT([ncursesw], [waddwstr], [HAVE_LIBNCURSESW], "ncursesw6-config", HTOP_CHECK_SCRIPT([ncursesw], [wadd_wch], [HAVE_LIBNCURSESW], "ncursesw5-config", HTOP_CHECK_SCRIPT([ncurses], [wadd_wch], [HAVE_LIBNCURSESW], "ncurses5-config", HTOP_CHECK_LIB([ncursesw6], [addnwstr], [HAVE_LIBNCURSESW], HTOP_CHECK_LIB([ncursesw], [addnwstr], [HAVE_LIBNCURSESW], HTOP_CHECK_LIB([ncurses], [addnwstr], [HAVE_LIBNCURSESW], AC_MSG_ERROR([can not find required library libncursesw; you may want to use --disable-unicode]) )))))))

AC_CHECK_HEADERS([ncursesw/curses.h], [], [AC_CHECK_HEADERS([ncurses/ncurses.h], [], [AC_CHECK_HEADERS([ncurses/curses.h], [], [AC_CHECK_HEADERS([ncurses.h], [], [AC_MSG_ERROR([can not find required ncurses header file])])])])])

# check if additional linker flags are needed for keypad(3) # (at this point we already link against a working ncurses library with wide character support) AC_SEARCH_LIBS([keypad], [tinfow tinfo]) else HTOP_CHECK_SCRIPT([ncurses6], [wnoutrefresh], [HAVE_LIBNCURSES], [ncurses6-config], HTOP_CHECK_SCRIPT([ncurses], [wnoutrefresh], [HAVE_LIBNCURSES], [ncurses5-config], HTOP_CHECK_LIB([ncurses6], [doupdate], [HAVE_LIBNCURSES], HTOP_CHECK_LIB([ncurses], [doupdate], [HAVE_LIBNCURSES], HTOP_CHECK_LIB([curses], [doupdate], [HAVE_LIBNCURSES], AC_MSG_ERROR([can not find required curses/ncurses library]) )))))

AC_CHECK_HEADERS([curses.h], [], [AC_CHECK_HEADERS([ncurses/curses.h], [], [AC_CHECK_HEADERS([ncurses/ncurses.h], [], [AC_CHECK_HEADERS([ncurses.h] ,[], [AC_MSG_ERROR([can not find required ncurses header file])])])])])

# check if additional linker flags are needed for keypad(3) # (at this point we already link against a working ncurses library) AC_SEARCH_LIBS([keypad], [tinfo]) fi if test "$enable_static" = yes; then AC_SEARCH_LIBS([Gpm_GetEvent], [gpm]) fi if test "$my_htop_platform" = "solaris"; then # On OmniOS /usr/include/sys/regset.h redefines ERR to 13 - \r, breaking the Enter key. # Since ncurses macros use the ERR macro, we can not use another name. AC_DEFINE([ERR], [(-1)], [Predefine ncurses macro.]) fi AC_CHECK_FUNCS( [set_escdelay] ) AC_CHECK_FUNCS( [getmouse] )

AC_ARG_ENABLE([affinity], [AS_HELP_STRING([--enable-affinity], [enable sched_setaffinity and sched_getaffinity for affinity support, conflicts with hwloc @:@default=check@:@])], [], [enable_affinity=check]) if test "x$enable_affinity" = xcheck; then if test "x$enable_hwloc" = xyes; then enable_affinity=no else AC_MSG_CHECKING([for usable sched_setaffinity]) AC_RUN_IFELSE([ AC_LANG_PROGRAM([[ #include #include static cpu_set_t cpuset; ]], [[ CPU_ZERO(&cpuset); sched_setaffinity(0, sizeof(cpu_set_t), &cpuset); if (errno == ENOSYS) return 1; ]])], [enable_affinity=yes AC_MSG_RESULT([yes])], [enable_affinity=no AC_MSG_RESULT([no])], [AC_MSG_RESULT([yes (assumed while cross compiling)])]) fi fi if test "x$enable_affinity" = xyes; then if test "x$enable_hwloc" = xyes; then AC_MSG_ERROR([--enable-hwloc and --enable-affinity are mutual exclusive. Specify at most one of them.]) fi AC_DEFINE([HAVE_AFFINITY], [1], [Define if sched_setaffinity and sched_getaffinity are to be used.]) fi

AC_ARG_ENABLE([unwind], [AS_HELP_STRING([--enable-unwind], [enable unwind support for printing backtraces; requires libunwind @:@default=check@:@])], [], [enable_unwind=check]) case "$enable_unwind" in check) enable_unwind=yes if test "$enable_static" = yes; then AC_CHECK_LIB([lzma], [lzma_index_buffer_decode]) fi AC_CHECK_LIB([unwind], [backtrace], [], [enable_unwind=no]) AC_CHECK_HEADERS([libunwind.h], [], [ old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -I/usr/include/libunwind" AC_CHECK_HEADERS([libunwind/libunwind.h], [], [ enable_unwind=no CFLAGS="$old_CFLAGS" ]) ]) ;; no) ;; yes) AC_CHECK_LIB([unwind], [backtrace], [], [AC_MSG_ERROR([can not find required library libunwind])]) AC_CHECK_HEADERS([libunwind.h], [], [ CFLAGS="$CFLAGS -I/usr/include/libunwind" AC_CHECK_HEADERS([libunwind/libunwind.h], [], [AC_MSG_ERROR([can not find required header file libunwind.h])]) ]) ;; *) AC_MSG_ERROR([bad value '$enable_unwind' for --enable-unwind]) ;; esac if test "x$enable_unwind" = xno; then # Fall back to backtrace(3) and add -lexecinfo if needed AC_SEARCH_LIBS([backtrace], [execinfo]) fi

AC_ARG_ENABLE([hwloc], [AS_HELP_STRING([--enable-hwloc], [enable hwloc support for CPU affinity; disables affinity support; requires libhwloc @:@default=no@:@])], [], [enable_hwloc=no]) case "$enable_hwloc" in no) ;; yes) m4_ifdef([PKG_PROG_PKG_CONFIG], [ PKG_PROG_PKG_CONFIG() PKG_CHECK_MODULES(HWLOC, hwloc, [ CFLAGS="$CFLAGS $HWLOC_CFLAGS" LIBS="$LIBS $HWLOC_LIBS" ], [ AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])]) AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])]) ]) ], [ AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])]) AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])]) ]) ;; *) AC_MSG_ERROR([bad value '$enable_hwloc' for --enable-hwloc]) ;; esac

AC_ARG_WITH([os-release], [AS_HELP_STRING([--with-os-release=FILE], [location of an os-release file @:@default=/etc/os-release@:@])], [], [with_os_release=/etc/os-release]) if test -n "$with_os_release" && test ! -f "$with_os_release"; then if test -f "/usr/lib/os-release"; then with_os_release="/usr/lib/os-release" fi fi AC_DEFINE_UNQUOTED([OSRELEASEFILE], ["$with_os_release"], [File with OS release details.])

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Checks for Linux features and flags.

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AC_ARG_WITH([proc], [AS_HELP_STRING([--with-proc=DIR], [location of a Linux-compatible proc filesystem @:@default=/proc@:@])], [], [with_proc=/proc]) if test -z "$with_proc"; then AC_MSG_ERROR([bad empty value for --with-proc option]) fi AC_DEFINE_UNQUOTED([PROCDIR], ["$with_proc"], [Path of proc filesystem.])

AC_ARG_ENABLE([openvz], [AS_HELP_STRING([--enable-openvz], [enable OpenVZ support @:@default=no@:@])], [], [enable_openvz=no]) if test "x$enable_openvz" = xyes; then AC_DEFINE([HAVE_OPENVZ], [1], [Define if openvz support enabled.]) fi

AC_ARG_ENABLE([vserver], [AS_HELP_STRING([--enable-vserver], [enable VServer support @:@default=no@:@])], [], [enable_vserver=no]) if test "x$enable_vserver" = xyes; then AC_DEFINE([HAVE_VSERVER], [1], [Define if VServer support enabled.]) fi

AC_ARG_ENABLE([ancient_vserver], [AS_HELP_STRING([--enable-ancient-vserver], [enable ancient VServer support (implies --enable-vserver) @:@default=no@:@])], [], [enable_ancient_vserver=no]) if test "x$enable_ancient_vserver" = xyes; then if test "x$enable_vserver" != xyes; then enable_vserver=implied fi AC_DEFINE([HAVE_VSERVER], [1], [Define if VServer support enabled.]) AC_DEFINE([HAVE_ANCIENT_VSERVER], [1], [Define if ancient vserver support enabled.]) fi

AC_ARG_ENABLE([capabilities], [AS_HELP_STRING([--enable-capabilities], [enable Linux capabilities support; requires libcap @:@default=check@:@])], [], [enable_capabilities=check]) case "$enable_capabilities" in no) ;; check) enable_capabilities=yes AC_CHECK_LIB([cap], [cap_init], [], [enable_capabilities=no]) AC_CHECK_HEADERS([sys/capability.h], [], [enable_capabilities=no]) ;; yes) AC_CHECK_LIB([cap], [cap_init], [], [AC_MSG_ERROR([can not find required library libcap])]) AC_CHECK_HEADERS([sys/capability.h], [], [AC_MSG_ERROR([can not find required header file sys/capability.h])]) ;; *) AC_MSG_ERROR([bad value '$enable_capabilities' for --enable-capabilities]) ;; esac

AC_ARG_ENABLE([delayacct], [AS_HELP_STRING([--enable-delayacct], [enable Linux delay accounting support; requires pkg-config, libnl-3 and libnl-genl-3 @:@default=check@:@])], [], [enable_delayacct=check]) case "$enable_delayacct" in no) ;; check) if test "$my_htop_platform" != linux; then enable_delayacct=no elif test "$enable_static" = yes; then enable_delayacct=no else m4_ifdef([PKG_PROG_PKG_CONFIG], [ enable_delayacct=yes PKG_PROG_PKG_CONFIG() PKG_CHECK_MODULES(LIBNL3, libnl-3.0, [], [enable_delayacct=no]) PKG_CHECK_MODULES(LIBNL3GENL, libnl-genl-3.0, [], [enable_delayacct=no]) if test "$enable_delayacct" = yes; then CFLAGS="$CFLAGS $LIBNL3_CFLAGS $LIBNL3GENL_CFLAGS" LIBS="$LIBS $LIBNL3_LIBS $LIBNL3GENL_LIBS" AC_DEFINE([HAVE_DELAYACCT], [1], [Define if delay accounting support should be enabled.]) fi ], [ enable_delayacct=no AC_MSG_NOTICE([Linux delay accounting support can not be enabled, cause pkg-config is required for checking its availability]) ]) fi ;; yes) m4_ifdef([PKG_PROG_PKG_CONFIG], [ PKG_PROG_PKG_CONFIG() PKG_CHECK_MODULES(LIBNL3, libnl-3.0, [], [AC_MSG_ERROR([can not find required library libnl3])]) PKG_CHECK_MODULES(LIBNL3GENL, libnl-genl-3.0, [], [AC_MSG_ERROR([can not find required library libnl3genl])]) CFLAGS="$CFLAGS $LIBNL3_CFLAGS $LIBNL3GENL_CFLAGS" LIBS="$LIBS $LIBNL3_LIBS $LIBNL3GENL_LIBS" AC_DEFINE([HAVE_DELAYACCT], [1], [Define if delay accounting support should be enabled.]) ], [ pkg_m4_absent=1 m4_warning([configure is generated without pkg.m4. 'make dist' target will be disabled.]) AC_MSG_ERROR([htop on Linux requires pkg-config for checking delayacct requirements. Please install pkg-config and run ./autogen.sh to rebuild the configure script.]) ]) ;; *) AC_MSG_ERROR([bad value '$enable_delayacct' for --enable-delayacct]) ;; esac

AC_ARG_ENABLE([sensors], [AS_HELP_STRING([--enable-sensors], [enable libsensors support for reading temperature data; requires only libsensors headers at compile time, at runtime libsensors is loaded via dlopen @:@default=check@:@])], [], [enable_sensors=check]) case "$enable_sensors" in no) ;; check) enable_sensors=yes if test "$enable_static" = yes; then AC_CHECK_LIB([sensors], [sensors_init], [], [enable_sensors=no]) fi AC_CHECK_HEADERS([sensors/sensors.h], [], [enable_sensors=no]) ;; yes) if test "$enable_static" = yes; then AC_CHECK_LIB([sensors], [sensors_init], [], [AC_MSG_ERROR([can not find required library libsensors])]) fi AC_CHECK_HEADERS([sensors/sensors.h], [], [AC_MSG_ERROR([can not find required header file sensors/sensors.h])]) ;; *) AC_MSG_ERROR([bad value '$enable_sensors' for --enable-sensors]) ;; esac if test "$enable_sensors" = yes || test "$my_htop_platform" = freebsd; then AC_DEFINE([BUILD_WITH_CPU_TEMP], [1], [Define if CPU temperature option should be enabled.]) fi

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Checks for compiler warnings.

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AM_CFLAGS="\ -Wall\ -Wcast-align\ -Wcast-qual\ -Wextra\ -Wfloat-equal\ -Wformat=2\ -Winit-self\ -Wmissing-format-attribute\ -Wmissing-noreturn\ -Wmissing-prototypes\ -Wpointer-arith\ -Wshadow\ -Wstrict-prototypes\ -Wundef\ -Wunused\ -Wwrite-strings"

FreeBSD uses C11 _Generic in its isnan implementation, even with -std=c99

if test "$my_htop_platform" = freebsd; then AM_CFLAGS="$AM_CFLAGS -Wno-c11-extensions" fi

dnl https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html AC_DEFUN([AX_CHECK_COMPILE_FLAG], [ AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]AC_LANG_ABBREV[]flags$4_$1])dnl AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) AS_VAR_IF(CACHEVAR,yes, [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl ])dnl AX_CHECK_COMPILE_FLAGS

AX_CHECK_COMPILE_FLAG([-Wextra-semi-stmt], [AM_CFLAGS="$AM_CFLAGS -Wextra-semi-stmt"], , [-Werror=unknown-warning-option]) dnl the autoconf check itself generates -Wextra-semi-stmt AX_CHECK_COMPILE_FLAG([-Wimplicit-int-conversion], [AM_CFLAGS="$AM_CFLAGS -Wimplicit-int-conversion"], , [-Werror]) AX_CHECK_COMPILE_FLAG([-Wnull-dereference], [AM_CFLAGS="$AM_CFLAGS -Wnull-dereference"], , [-Werror])

AC_ARG_ENABLE([werror], [AS_HELP_STRING([--enable-werror], [Treat warnings as errors @:@default=no@:@])], [], [enable_werror=no]) if test "x$enable_werror" = xyes; then AM_CFLAGS="$AM_CFLAGS -Werror" fi

AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug], [Enable compiling with maximum debug info, asserts and internal sanity checks @:@default=no@:@])], [], [enable_debug=no]) if test "x$enable_debug" != xyes; then AM_CPPFLAGS="$AM_CPPFLAGS -DNDEBUG" else AM_CPPFLAGS="$AM_CPPFLAGS -ggdb3" fi

AC_SUBST([AM_CFLAGS]) AC_SUBST([AM_CPPFLAGS])

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We're done, let's go!

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AC_DEFINE_UNQUOTED([COPYRIGHT], ["(C) 2004-2019 Hisham Muhammad. (C) 2020-2022 htop dev team."], [Copyright message.])

AM_CONDITIONAL([HTOP_LINUX], [test "$my_htop_platform" = linux]) AM_CONDITIONAL([HTOP_FREEBSD], [test "$my_htop_platform" = freebsd]) AM_CONDITIONAL([HTOP_DRAGONFLYBSD], [test "$my_htop_platform" = dragonflybsd]) AM_CONDITIONAL([HTOP_NETBSD], [test "$my_htop_platform" = netbsd]) AM_CONDITIONAL([HTOP_OPENBSD], [test "$my_htop_platform" = openbsd]) AM_CONDITIONAL([HTOP_DARWIN], [test "$my_htop_platform" = darwin]) AM_CONDITIONAL([HTOP_SOLARIS], [test "$my_htop_platform" = solaris]) AM_CONDITIONAL([HTOP_PCP], [test "$my_htop_platform" = pcp]) AM_CONDITIONAL([HTOP_UNSUPPORTED], [test "$my_htop_platform" = unsupported])

AC_SUBST(my_htop_platform) AC_CONFIG_FILES([Makefile htop.1]) AC_OUTPUT

if test "$my_htop_platform" = unsupported; then echo "" echo "*********" echo "WARNING! This platform is not currently supported by htop." echo "" echo "The code will build, but it will produce a dummy version of htop" echo "which shows no processes, using the files from the unsupported/" echo "directory. This is meant to be a skeleton, to be used as a" echo "starting point if you are porting htop to a new platform." echo "*********" echo "" fi

AC_MSG_RESULT([ ${PACKAGE_NAME} ${VERSION}

platform: $my_htop_platform os-release file: $with_os_release (Linux) proc directory: $with_proc (Linux) openvz: $enable_openvz (Linux) vserver: $enable_vserver (Linux) ancient vserver: $enable_ancient_vserver (Linux) delay accounting: $enable_delayacct (Linux) sensors: $enable_sensors (Linux) capabilities: $enable_capabilities unicode: $enable_unicode affinity: $enable_affinity unwind: $enable_unwind hwloc: $enable_hwloc debug: $enable_debug static: $enable_static ])

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