--- configure.ac.orig	2025-04-30 20:18:48.000000000 +0800
+++ configure.ac	2025-04-30 20:34:24.000000000 +0800
@@ -358,7 +358,7 @@
 esac
 AC_MSG_RESULT("$PIC_CFLAGS -DPIC")
 
-CFLAGS="$CFLAGS $PIC_CFLAGS -std=c90"
+CFLAGS="$CFLAGS $PIC_CFLAGS"
 CPPFLAGS="$CPPFLAGS -DPIC $CB_TINYXML_CFLAGS"
 CXXFLAGS="$CXXFLAGS $PIC_CFLAGS -fexceptions"
 AC_SUBST(codeblocks_PCH_FLAGS, "$PCH_FLAGS")