Libc (DragonFly): add support

CMakeLists.txt

@@ -1124,12 +1124,19 @@ if(APPLE AND EXISTS "/usr/bin/otool")
     endif()
 endif()
 if(FreeBSD AND EXISTS "/usr/local/bin/objdump")
-    execute_process(COMMAND /bin/sh -c "/usr/local/bin/objdump -T /lib/libc.so.* | grep 'FBSD_[^ )]*' -o | sort -Vru | head -1"
+    execute_process(COMMAND /bin/sh -c "/usr/local/bin/objdump -T /lib/libc.so.* | grep 'FBSD_[0-9][0-9]*\\.[0-9][0-9]*' -o | sort -Vru | head -1"
                     OUTPUT_VARIABLE OBJDUMP_T_RESULT)
     if("${OBJDUMP_T_RESULT}" MATCHES "FBSD_([0-9]+\\.[0-9]+)")
         target_compile_definitions(libfastfetch PUBLIC FF_FBSD_VERSION="${CMAKE_MATCH_1}")
     endif()
 endif()
+if(DragonFly AND EXISTS "/usr/local/bin/objdump")
+    execute_process(COMMAND /bin/sh -c "/usr/local/bin/objdump -T /lib/libc.so.* | grep 'DF[0-9][0-9]*\\.[0-9][0-9]*' -o | sort -Vru | head -1"
+                    OUTPUT_VARIABLE OBJDUMP_T_RESULT)
+    if("${OBJDUMP_T_RESULT}" MATCHES "DF([0-9]+\\.[0-9]+)")
+        target_compile_definitions(libfastfetch PUBLIC FF_DF_VERSION="${CMAKE_MATCH_1}")
+    endif()
+endif()
 
 if(LINUX)
     target_compile_definitions(libfastfetch PUBLIC _GNU_SOURCE _XOPEN_SOURCE _ATFILE_SOURCE __STDC_WANT_LIB_EXT1__ _FILE_OFFSET_BITS=64 _TIME_BITS=64) # "$<$<CONFIG:Release>:_FORTIFY_SOURCE=3>"

src/detection/libc/libc_bsd.c

@@ -2,11 +2,18 @@
 
 const char* ffDetectLibc(FFLibcResult* result)
 {
+#ifdef __DragonFly__ // We define `__FreeBSD__` on DragonFly BSD for simplification
+    result->name = "DF";
+    #ifdef FF_DF_VERSION
+    result->version = FF_DF_VERSION;
+    #endif
+#elif __FreeBSD__
     result->name = "FBSD";
-
-#ifdef FF_FBSD_VERSION
+    #ifdef FF_FBSD_VERSION
     result->version = FF_FBSD_VERSION;
+    #endif
 #else
+    result->name = "Unknown";
     result->version = NULL;
 #endif
     return NULL;

src/detection/version/version.c

@@ -26,6 +26,8 @@
     #define FF_SYSNAME "Android"
 #elif defined(__linux__)
     #define FF_SYSNAME "Linux"
+#elif defined(__DragonFly__) // We define `__FreeBSD__` on DragonFly BSD for simplification
+    #define FF_SYSNAME "DragonFly"
 #elif defined(__FreeBSD__)
     #define FF_SYSNAME "FreeBSD"
 #elif defined(__APPLE__)