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diff configure.ac @ 1849:d34f50b7b9fd

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Add configure --enable-werror argument This should be used instead of putting -Werror in CFLAGS before configure, as -Werror interferes with conftests. Update github actions to use that.
author Matt Johnston <matt@ucc.asn.au>
date Tue, 19 Oct 2021 12:16:20 +0800
parents df7bfd2f7d45
children 2b3a8026a6ce
line wrap: on
line diff
--- a/configure.ac	Tue Oct 19 11:50:12 2021 +0800
+++ b/configure.ac	Tue Oct 19 12:16:20 2021 +0800
@@ -16,6 +16,7 @@
 fi
 
 ORIGCFLAGS="$CFLAGS"
+LATE_CFLAGS=""
 # Checks for programs.
 AC_PROG_CC
 
@@ -127,6 +128,17 @@
 
 fi
 
+AC_ARG_ENABLE(werror,
+	[  --enable-werror         Set -Werror when building],
+	[
+		if test "x$enableval" = "xyes"; then
+			# -Werror shouldn't be set when configure runs tests.
+			# We add it to the Makefile's CFLAGS
+			LATE_CFLAGS+="$LATE_CFLAGS -Werror"
+			AC_MSG_NOTICE(Enabling -Werror)
+		fi
+	], [])
+
 # large file support is useful for scp
 AC_SYS_LARGEFILE
 
@@ -861,6 +873,9 @@
 LIBTOM_FILES="libtomcrypt/Makefile libtommath/Makefile"
 fi
 
+# flags that should be set in Makefile but not for configure tests
+CFLAGS="$CFLAGS $LATE_CFLAGS"
+
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_FILES(Makefile $LIBTOM_FILES test/Makefile)
 AC_OUTPUT