X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=configure.ac;h=7dd0736ad8cd52ca9fa2de3d201074d3568b6526;hb=5e8d8e15413e53337554af086e905bc7ae7fa089;hp=37e7b82f46b382d636cc35888e78187d03c5c8b0;hpb=5f2e8877486869471041b0eca1aaed841c41a1a9;p=meshlink

diff --git a/configure.ac b/configure.ac
index 37e7b82f..7dd0736a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,6 +54,8 @@ if test -d /sw/lib ; then
   LIBS="$LIBS -L/sw/lib"
 fi
 
+AX_CHECK_COMPILE_FLAG([-std=c11], [CFLAGS="-std=c11"])
+
 dnl Compiler hardening flags
 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.
 
@@ -75,6 +77,10 @@ AS_IF([test "x$enable_hardening" != "xno"],
    esac
    AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"])
    AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"])
+   AX_CHECK_COMPILE_FLAG([-Wextra -pedantic -Wreturn-type -Wold-style-definition -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wshadow -Wbad-function-cast -Wwrite-strings -fdiagnostics-show-option -fstrict-aliasing -Wmissing-noreturn], [
+     CPPFLAGS="$CPPFLAGS -Wextra -pedantic -Wreturn-type -Wmissing-declarations -Wredundant-decls -Wshadow -Wwrite-strings -fdiagnostics-show-option -fstrict-aliasing -Wmissing-noreturn"
+     CFLAGS="$CFLAGS -Wold-style-definition -Wmissing-prototypes -Wstrict-prototypes -Wbad-function-cast"
+   ])
   ]
 );