Add configure option to create static htop binary

2 files changed, 75 insertions, 3 deletions

diff --git a/linux/LibSensors.c b/linux/LibSensors.c
index 158829aa..f94bcff7 100644
--- a/linux/LibSensors.c
+++ b/linux/LibSensors.c
@@ -10,6 +10,19 @@
 #include "XUtils.h"
 
 
+#ifdef BUILD_STATIC
+
+#define sym_sensors_init sensors_init
+#define sym_sensors_cleanup sensors_cleanup
+#define sym_sensors_get_detected_chips sensors_get_detected_chips
+#define sym_sensors_snprintf_chip_name sensors_snprintf_chip_name
+#define sym_sensors_get_features sensors_get_features
+#define sym_sensors_get_subfeature sensors_get_subfeature
+#define sym_sensors_get_value sensors_get_value
+#define sym_sensors_get_label sensors_get_label
+
+#else
+
 static int (*sym_sensors_init)(FILE*);
 static void (*sym_sensors_cleanup)(void);
 static const sensors_chip_name* (*sym_sensors_get_detected_chips)(const sensors_chip_name*, int*);
@@ -21,7 +34,15 @@ static char* (*sym_sensors_get_label)(const sensors_chip_name*, const sensors_fe
 
 static void* dlopenHandle = NULL;
 
+#endif /* BUILD_STATIC */
+
 int LibSensors_init(FILE* input) {
+#ifdef BUILD_STATIC
+
+   return sym_sensors_init(input);
+
+#else
+
    if (!dlopenHandle) {
       /* Find the unversioned libsensors.so (symlink) and prefer that, but Debian has .so.5 and Fedora .so.4 without
          matching symlinks (unless people install the -dev packages) */
@@ -56,29 +77,42 @@ int LibSensors_init(FILE* input) {
 
    return sym_sensors_init(input);
 
+
 dlfailure:
    if (dlopenHandle) {
       dlclose(dlopenHandle);
       dlopenHandle = NULL;
    }
    return -1;
+
+#endif /* BUILD_STATIC */
 }
 
 void LibSensors_cleanup(void) {
+#ifdef BUILD_STATIC
+
+   sym_sensors_cleanup();
+
+#else
+
    if (dlopenHandle) {
       sym_sensors_cleanup();
 
       dlclose(dlopenHandle);
       dlopenHandle = NULL;
    }
+
+#endif /* BUILD_STATIC */
 }
 
 void LibSensors_getCPUTemperatures(CPUData* cpus, unsigned int cpuCount) {
    for (unsigned int i = 0; i <= cpuCount; i++)
       cpus[i].temperature = NAN;
 
+#ifndef BUILD_STATIC
    if (!dlopenHandle)
       return;
+#endif /* !BUILD_STATIC */
 
    unsigned int coreTempCount = 0;
 
diff --git a/linux/SystemdMeter.c b/linux/SystemdMeter.c
index 75c666f8..f6dcb3fb 100644
--- a/linux/SystemdMeter.c
+++ b/linux/SystemdMeter.c
@@ -21,8 +21,19 @@ in the source distribution for its full text.
 #include "RichString.h"
 #include "XUtils.h"
 
+#if defined(BUILD_STATIC) && defined(HAVE_LIBSYSTEMD)
+#include <systemd/sd-bus.h>
+#endif
 
-#define INVALID_VALUE ((unsigned int)-1)
+
+#ifdef BUILD_STATIC
+
+#define sym_sd_bus_open_system sd_bus_open_system
+#define sym_sd_bus_get_property_string sd_bus_get_property_string
+#define sym_sd_bus_get_property_trivial sd_bus_get_property_trivial
+#define sym_sd_bus_unref sd_bus_unref
+
+#else
 
 typedef void sd_bus;
 typedef void sd_bus_error;
@@ -30,19 +41,35 @@ static int (*sym_sd_bus_open_system)(sd_bus**);
 static int (*sym_sd_bus_get_property_string)(sd_bus*, const char*, const char*, const char*, const char*, sd_bus_error*, char**);
 static int (*sym_sd_bus_get_property_trivial)(sd_bus*, const char*, const char*, const char*, const char*, sd_bus_error*, char, void*);
 static sd_bus* (*sym_sd_bus_unref)(sd_bus*);
+static void* dlopenHandle = NULL;
+
+#endif /* BUILD_STATIC */
+
+#if !defined(BUILD_STATIC) || defined(HAVE_LIBSYSTEMD)
+static sd_bus* bus = NULL;
+#endif /* !BUILD_STATIC || HAVE_LIBSYSTEMD */
+
+
+#define INVALID_VALUE ((unsigned int)-1)
 
 static char* systemState = NULL;
 static unsigned int nFailedUnits = INVALID_VALUE;
 static unsigned int nInstalledJobs = INVALID_VALUE;
 static unsigned int nNames = INVALID_VALUE;
 static unsigned int nJobs = INVALID_VALUE;
-static void* dlopenHandle = NULL;
-static sd_bus* bus = NULL;
 
 static void SystemdMeter_done(ATTR_UNUSED Meter* this) {
    free(systemState);
    systemState = NULL;
 
+#ifdef BUILD_STATIC
+# ifdef HAVE_LIBSYSTEMD
+   if (bus) {
+      sym_sd_bus_unref(bus);
+   }
+   bus = NULL;
+# endif /* HAVE_LIBSYSTEMD */
+#else /* BUILD_STATIC */
    if (bus && dlopenHandle) {
       sym_sd_bus_unref(bus);
    }
@@ -52,9 +79,12 @@ static void SystemdMeter_done(ATTR_UNUSED Meter* this) {
       dlclose(dlopenHandle);
       dlopenHandle = NULL;
    }
+#endif /* BUILD_STATIC */
 }
 
+#if !defined(BUILD_STATIC) || defined(HAVE_LIBSYSTEMD)
 static int updateViaLib(void) {
+#ifndef BUILD_STATIC
    if (!dlopenHandle) {
       dlopenHandle = dlopen("libsystemd.so.0", RTLD_LAZY);
       if (!dlopenHandle)
@@ -76,6 +106,7 @@ static int updateViaLib(void) {
 
       #undef resolve
    }
+#endif /* !BUILD_STATIC */
 
    int r;
 
@@ -152,13 +183,16 @@ busfailure:
    bus = NULL;
    return -2;
 
+#ifndef BUILD_STATIC
 dlfailure:
    if (dlopenHandle) {
       dlclose(dlopenHandle);
       dlopenHandle = NULL;
    }
    return -1;
+#endif /* !BUILD_STATIC */
 }
+#endif /* !BUILD_STATIC || HAVE_LIBSYSTEMD */
 
 static void updateViaExec(void) {
    int fdpair[2];
@@ -233,8 +267,12 @@ static void SystemdMeter_updateValues(ATTR_UNUSED Meter* this, char* buffer, siz
    systemState = NULL;
    nFailedUnits = nInstalledJobs = nNames = nJobs = INVALID_VALUE;
 
+#if !defined(BUILD_STATIC) || defined(HAVE_LIBSYSTEMD)
    if (updateViaLib() < 0)
       updateViaExec();
+#else
+   updateViaExec();
+#endif /* !BUILD_STATIC || HAVE_LIBSYSTEMD */
 
    xSnprintf(buffer, size, "%s", systemState ? systemState : "???");
 }