Global: don't use __has_include

It reports false results in ubuntu 20.04. Details unknown.

CMakeLists.txt

@@ -1186,7 +1186,35 @@ if(WIN32)
             PRIVATE "-static" # stdc++, winpthread, gcc_s, etc.
         )
     endif()
-        set(CMAKE_CXX_STANDARD 17)
+    set(CMAKE_CXX_STANDARD 17)
+endif()
+if(LINUX)
+    CHECK_INCLUDE_FILE("linux/videodev2.h" HAVE_LINUX_VIDEODEV2)
+    if(HAVE_LINUX_VIDEODEV2)
+        target_compile_definitions(libfastfetch PRIVATE FF_HAVE_LINUX_VIDEODEV2=1)
+    endif()
+    CHECK_INCLUDE_FILE("linux/wireless.h" HAVE_LINUX_WIRELESS)
+    if(HAVE_LINUX_WIRELESS)
+        target_compile_definitions(libfastfetch PRIVATE FF_HAVE_LINUX_WIRELESS=1)
+    endif()
+endif()
+if(NOT WIN32)
+    CHECK_INCLUDE_FILE("utmpx.h" HAVE_UTMPX)
+    if(HAVE_UTMPX)
+        target_compile_definitions(libfastfetch PRIVATE FF_HAVE_UTMPX=1)
+    endif()
+    CHECK_INCLUDE_FILE("wordexp.h" HAVE_WORDEXP)
+    if(HAVE_WORDEXP)
+        target_compile_definitions(libfastfetch PRIVATE FF_HAVE_WORDEXP=1)
+    endif()
+    CHECK_INCLUDE_FILE("pthread_np.h" HAVE_PTHREAD_NP)
+    if(HAVE_PTHREAD_NP)
+        target_compile_definitions(libfastfetch PRIVATE FF_HAVE_PTHREAD_NP=1)
+    endif()
+    check_function_exists("pthread_timedjoin_np" HAVE_TIMEDJOIN_NP)
+    if(HAVE_TIMEDJOIN_NP)
+        target_compile_definitions(libfastfetch PRIVATE FF_HAVE_TIMEDJOIN_NP=1)
+    endif()
 endif()
 
 ######################

src/common/init.c

@@ -173,94 +173,94 @@ void ffDestroyInstance(void)
 void ffListFeatures(void)
 {
     fputs(
-        #ifdef FF_HAVE_THREADS
+        #if FF_HAVE_THREADS
             "threads\n"
         #endif
-        #ifdef FF_HAVE_VULKAN
+        #if FF_HAVE_VULKAN
             "vulkan\n"
         #endif
-        #ifdef FF_HAVE_WAYLAND
+        #if FF_HAVE_WAYLAND
             "wayland\n"
         #endif
-        #ifdef FF_HAVE_XCB_RANDR
+        #if FF_HAVE_XCB_RANDR
             "xcb-randr\n"
         #endif
-        #ifdef FF_HAVE_XCB
+        #if FF_HAVE_XCB
             "xcb\n"
         #endif
-        #ifdef FF_HAVE_XRANDR
+        #if FF_HAVE_XRANDR
             "xrandr\n"
         #endif
-        #ifdef FF_HAVE_X11
+        #if FF_HAVE_X11
             "x11\n"
         #endif
-        #ifdef FF_HAVE_DRM
+        #if FF_HAVE_DRM
             "drm\n"
         #endif
-        #ifdef FF_HAVE_GIO
+        #if FF_HAVE_GIO
             "gio\n"
         #endif
-        #ifdef FF_HAVE_DCONF
+        #if FF_HAVE_DCONF
             "dconf\n"
         #endif
-        #ifdef FF_HAVE_DBUS
+        #if FF_HAVE_DBUS
             "dbus\n"
         #endif
-        #ifdef FF_HAVE_IMAGEMAGICK7
+        #if FF_HAVE_IMAGEMAGICK7
             "imagemagick7\n"
         #endif
-        #ifdef FF_HAVE_IMAGEMAGICK6
+        #if FF_HAVE_IMAGEMAGICK6
             "imagemagick6\n"
         #endif
-        #ifdef FF_HAVE_CHAFA
+        #if FF_HAVE_CHAFA
             "chafa\n"
         #endif
-        #ifdef FF_HAVE_ZLIB
+        #if FF_HAVE_ZLIB
             "zlib\n"
         #endif
-        #ifdef FF_HAVE_XFCONF
+        #if FF_HAVE_XFCONF
             "xfconf\n"
         #endif
-        #ifdef FF_HAVE_SQLITE3
+        #if FF_HAVE_SQLITE3
             "sqlite3\n"
         #endif
-        #ifdef FF_HAVE_RPM
+        #if FF_HAVE_RPM
             "rpm\n"
         #endif
-        #ifdef FF_HAVE_EGL
+        #if FF_HAVE_EGL
             "egl\n"
         #endif
-        #ifdef FF_HAVE_GLX
+        #if FF_HAVE_GLX
             "glx\n"
         #endif
-        #ifdef FF_HAVE_OSMESA
+        #if FF_HAVE_OSMESA
             "osmesa\n"
         #endif
-        #ifdef FF_HAVE_OPENCL
+        #if FF_HAVE_OPENCL
             "opencl\n"
         #endif
-        #ifdef FF_HAVE_FREETYPE
+        #if FF_HAVE_FREETYPE
             "freetype\n"
         #endif
-        #ifdef FF_HAVE_PULSE
+        #if FF_HAVE_PULSE
             "libpulse\n"
         #endif
-        #ifdef FF_HAVE_LIBNM
+        #if FF_HAVE_LIBNM
             "libnm\n"
         #endif
-        #ifdef FF_HAVE_DDCUTIL
+        #if FF_HAVE_DDCUTIL
             "libddcutil\n"
         #endif
-        #ifdef FF_HAVE_DIRECTX_HEADERS
+        #if FF_HAVE_DIRECTX_HEADERS
             "Directx Headers\n"
         #endif
-        #ifdef FF_USE_SYSTEM_YYJSON
+        #if FF_USE_SYSTEM_YYJSON
             "System yyjson\n"
         #endif
-        #if __has_include(<linux/videodev2.h>)
+        #if FF_HAVE_LINUX_VIDEODEV2
             "linux/videodev2\n"
         #endif
-        #if __has_include(<linux/wireless.h>)
+        #if FF_HAVE_LINUX_WIRELESS
             "linux/wireless\n"
         #endif
         ""

src/common/io/io_unix.c

@@ -8,8 +8,10 @@
 #include <dirent.h>
 #include <errno.h>
 
-#if __has_include(<wordexp.h>)
-#include <wordexp.h>
+#if FF_HAVE_WORDEXP
+    #include <wordexp.h>
+#else
+    #warning "<wordexp.h> not available"
 #endif
 
 static void createSubfolders(const char* fileName)
@@ -112,7 +114,7 @@ bool ffPathExpandEnv(FF_MAYBE_UNUSED const char* in, FF_MAYBE_UNUSED FFstrbuf* o
 {
     bool result = false;
 
-    #if __has_include(<wordexp.h>) // https://github.com/termux/termux-packages/pull/7056
+    #if FF_HAVE_WORDEXP // https://github.com/termux/termux-packages/pull/7056
 
     wordexp_t exp;
     if(wordexp(in, &exp, 0) != 0)

src/common/thread.h

@@ -33,7 +33,7 @@
     #else
         #include <pthread.h>
         #include <signal.h>
-        #if __has_include(<pthread_np.h>)
+        #if FF_HAVE_PTHREAD_NP
             #include <pthread_np.h>
         #endif
         #define FF_THREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
@@ -51,7 +51,7 @@
         static inline void ffThreadDetach(FFThreadType thread) { pthread_detach(thread); }
         static inline bool ffThreadJoin(FFThreadType thread, FF_MAYBE_UNUSED uint32_t timeout)
         {
-            #if (defined(__linux__) && !defined(__ANDROID__)) || __has_include(<pthread_np.h>)
+            #if HAVE_TIMEDJOIN_NP
                 if (timeout > 0)
                 {
                     struct timespec ts;

src/detection/camera/camera_linux.c

@@ -5,13 +5,13 @@
 #include <fcntl.h>
 #include <sys/ioctl.h>
 
-#if __has_include(<linux/videodev2.h>)
+#if FF_HAVE_LINUX_VIDEODEV2
     #include <linux/videodev2.h>
 #endif
 
 const char* ffDetectCamera(FFlist* result)
 {
-#if __has_include(<linux/videodev2.h>)
+#if FF_HAVE_LINUX_VIDEODEV2
     char path[] = "/dev/videoN";
 
     for (uint32_t i = 0; i <= 9; ++i)

src/detection/gpu/gpu_linux.c

@@ -7,29 +7,23 @@
 #include "common/properties.h"
 #include "util/stringUtils.h"
 
-#define FF_STR_INDIR(x) #x
-#define FF_STR(x) FF_STR_INDIR(x)
-
 #include <inttypes.h>
 
-#if __has_include(<drm/drm.h>)
-    #include <drm/drm.h>
-    #define FF_HAVE_DRM_H 1
-#elif __has_include(<libdrm/drm.h>)
-    #include <libdrm/drm.h>
-    #define FF_HAVE_DRM_H 1
-#endif
-
-#if FF_HAVE_DRM_H
-    #include <fcntl.h>
-    #include <sys/ioctl.h>
-
-    #if __aarch64__ && __has_include(<drm/asahi_drm.h>)
-        #include <drm/asahi_drm.h>
+#if __aarch64__
+    #if __has_include(<asahi_drm.h>)
+        #include <asahi_drm.h>
+        #include <drm.h>
+        #include <fcntl.h>
+        #include <sys/ioctl.h>
         #define FF_HAVE_ASAHI_DRM_H 1
+    #else
+        #warning "<asahi_drm.h> not available"
     #endif
 #endif
 
+#define FF_STR_INDIR(x) #x
+#define FF_STR(x) FF_STR_INDIR(x)
+
 static bool pciDetectDriver(FFGPUResult* gpu, FFstrbuf* pciDir, FFstrbuf* buffer, FF_MAYBE_UNUSED const char* drmKey)
 {
     uint32_t pciDirLength = pciDir->length;

src/detection/users/users_linux.c

@@ -1,7 +1,7 @@
 #include "fastfetch.h"
 #include "users.h"
 
-#if __has_include(<utmpx.h>)
+#if FF_HAVE_UTMPX
     #include <utmpx.h>
 #else
     //for Android compatibility

src/detection/wifi/wifi_linux.c

@@ -212,7 +212,7 @@ static const char* detectWifiWithLibnm(FFlist* result)
 
 #endif
 
-#if __has_include(<linux/wireless.h>)
+#if FF_HAVE_LINUX_WIRELESS
 #define FF_DETECT_WIFI_WITH_IOCTLS
 
 #include "common/io/io.h"