Commit fdfea29f6d3866ca60b11f268874e0a7770f3e10
2022-12-08T15:38:04
fix compilation on Linux
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diff --git a/c3s/configure b/c3s/configure
index 2d962c2..a732f39 100755
--- a/c3s/configure
+++ b/c3s/configure
@@ -46,6 +46,7 @@ LIBS="${LIBS:=-lm}"
# Common config for all targets
CFLAGS="$CFLAGS -W -Wall -Werror -std=c99 -pedantic"
config_asan
+config_gnu
pkg_config libbsd-overlay
pkg_config libffi
pkg_config libmd
diff --git a/config.subr b/config.subr
index ffa4e15..eef1b1e 100644
--- a/config.subr
+++ b/config.subr
@@ -64,6 +64,12 @@ config_asan() {
rm .config_asan.c
}
+config_gnu() {
+ if grep -q _GNU_SOURCE /usr/include/features.h 2>/dev/null; then
+ CFLAGS="$CFLAGS -D_GNU_SOURCE"
+ fi
+}
+
pkg_config() {
if pkg-config "$1"; then
CFLAGS="$CFLAGS $(pkg-config --cflags "$1")"
diff --git a/ic3/configure b/ic3/configure
index 303f30f..8ed3b8c 100755
--- a/ic3/configure
+++ b/ic3/configure
@@ -46,6 +46,7 @@ LIBS="${LIBS:=-lm}"
# Common config for all targets
CFLAGS="$CFLAGS -W -Wall -Werror -std=c99 -pedantic"
config_asan
+config_gnu
pkg_config libbsd-overlay
pkg_config libffi
pkg_config libmd
diff --git a/libc3/configure b/libc3/configure
index a4e6da1..a96834a 100755
--- a/libc3/configure
+++ b/libc3/configure
@@ -47,6 +47,7 @@ LIBS="${LIBS:=-lm}"
# Common config for all targets
CFLAGS="$CFLAGS -W -Wall -Werror -std=c99 -pedantic"
config_asan
+config_gnu
pkg_config libbsd
pkg_config libffi
pkg_config libmd
diff --git a/test/configure b/test/configure
index 9e8343d..44d4eeb 100755
--- a/test/configure
+++ b/test/configure
@@ -48,6 +48,7 @@ LIBS="${LIBS:=} -lm"
# Common config for all targets
CFLAGS="$CFLAGS -W -Wall -Werror -std=c99 -pedantic"
config_asan
+config_gnu
pkg_config libbsd-overlay
pkg_config libffi
pkg_config libmd