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authorKarl Berry <karl@freefriends.org>2023-02-26 07:27:31 +0100
committerWerner Lemberg <wl@gnu.org>2023-02-26 07:31:49 +0100
commitf19ab673273b33078904f53c29d1a1d837793213 (patch)
tree0f9294318b1b64040f99a478ffec5ac83a6f3054
parent6423ddb8a077c44ddf90e6b149c308a801a7bb78 (diff)
downloadfreetype2-f19ab673273b33078904f53c29d1a1d837793213.tar.gz
* configure: Don't hardcode `grep -E`.
TeXLive still supports Solaris 5.10, where the system's `grep` doesn't accept the `-E` option. We thus introduce an `EGREP` variable that is set to either `grep -E` or `-egrep`.
-rwxr-xr-xconfigure13
1 files changed, 11 insertions, 2 deletions
diff --git a/configure b/configure
index 75f8b7bb0..b30e5d475 100755
--- a/configure
+++ b/configure
@@ -15,10 +15,19 @@
rm -f config.mk builds/unix/unix-def.mk builds/unix/unix-cc.mk
+if test -z "$EGREP"; then
+ if echo a | grep -E '(a|b)' >/dev/null 2>&1; then
+ EGREP="grep -E"
+ else
+ # if grep -E doesn't work, assume egrep does.
+ EGREP=egrep
+ fi
+fi
+
# respect GNUMAKE environment variable for backward compatibility
if test "x$GNUMAKE" = x; then
if test "x$MAKE" = x; then
- if test "x`make -v 2>/dev/null | grep -E 'GNU|makepp'`" = x; then
+ if test "x`make -v 2>/dev/null | $EGREP 'GNU|makepp'`" = x; then
MAKE=gmake
else
MAKE=make
@@ -28,7 +37,7 @@ else
MAKE=$GNUMAKE
fi
-if test "x`$MAKE -v 2>/dev/null | grep -E 'GNU|makepp'`" = x; then
+if test "x`$MAKE -v 2>/dev/null | $EGREP 'GNU|makepp'`" = x; then
echo "GNU make (>= 3.81) or makepp (>= 2.0) is required to build FreeType2." >&2
echo "Please try" >&2
echo >&2