configure.ac: treat freetype2 include folder as a system one

neutrinolabs · Mar 30, 2024 · ff75ff1 · ff75ff1
1 parent da33a13
commit ff75ff1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/configure.ac b/configure.ac
@@ -319,7 +319,7 @@ case "$with_freetype2" in
         fi
 
         if test -f $with_freetype2/include/freetype2/ft2build.h; then
-            FREETYPE2_CFLAGS="-I $with_freetype2/include/freetype2"
+            FREETYPE2_CFLAGS="-isystem $with_freetype2/include/freetype2"
         else
             AC_MSG_RESULT([no])
             AC_MSG_ERROR([Can't find $with_freetype2/include/freetype2/ft2build.h])