From 6388033e107a74a6e962eabf4ec06065d12d28db Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20G=C3=B6ttsche?= Date: Tue, 14 Dec 2021 17:36:57 +0100 Subject: configure: support libunwind of LLVM The libunwind headers of LLVM are located in the subdirectory /usr/include/libunwind. Search that subdirectory when the default header test fails. Also extend the include path due to the transitive include of `<__libunwind_config.h>`. Closes: #894 --- configure.ac | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index 6618ce19..bcbc0a28 100644 --- a/configure.ac +++ b/configure.ac @@ -419,13 +419,23 @@ case "$enable_unwind" in AC_CHECK_LIB([lzma], [lzma_index_buffer_decode]) fi AC_CHECK_LIB([unwind], [backtrace], [], [enable_unwind=no]) - AC_CHECK_HEADERS([libunwind.h], [], [enable_unwind=no]) + AC_CHECK_HEADERS([libunwind.h], [], [ + old_CFLAGS="$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], [], [AC_MSG_ERROR([can not find require header file libunwind.h])]) + 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]) -- cgit v1.2.3