m4/nut_check_libgd.m4: AX_RUN_OR_LINK_IFELSE() to check that we can a…

…ctually build a graphical program Namely, that further third-party libs are available for the chosen architecture, not only the headers. Had a problem with 32/64-bit build agent that only had a binary lib*.so set for 64-bit after an update. Signed-off-by: Jim Klimov <[email protected]>
jimklimov · Aug 12, 2024 · b2df27e · b2df27e
1 parent 015e238
commit b2df27e
Showing 1 changed file with 20 additions and 0 deletions.
diff --git a/m4/nut_check_libgd.m4 b/m4/nut_check_libgd.m4
@@ -141,6 +141,26 @@ if test -z "${nut_have_libgd_seen}"; then
 		])
 	])
 
+	if test "${nut_have_libgd}" = "yes"; then
+		AC_MSG_CHECKING([whether we can build, link and/or run a program with libgd])
+		AC_LANG_PUSH([C])
+		AX_RUN_OR_LINK_IFELSE([AC_LANG_PROGRAM([
+#include <gd.h>
+#include <gdfontmb.h>
+],
+[
+gdImagePtr im = gdImageCreate(64, 128);
+int back_color = gdImageColorAllocate(im, 255, 128, 32);
+gdImageFilledRectangle(im, 0, 0, 64, 128, back_color);
+gdImageColorTransparent(im, back_color);
+gdImagePng(im, stdout);
+gdImageDestroy(im);
+]
+		)], [], [nut_have_libgd=no])
+		AC_LANG_POP([C])
+		AC_MSG_RESULT([${nut_have_libgd}])
+	fi
+
 	if test "${nut_have_libgd}" = "yes"; then
 		AC_DEFINE(HAVE_LIBGD, 1, [Define if you have Boutell's libgd installed])
 		LIBGD_CFLAGS="${CFLAGS}"