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* configure: Don't hardcode grep -E.

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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`.
This commit is contained in:
Karl Berry 2023-02-26 07:27:31 +01:00 committed by Werner Lemberg
parent 6423ddb8a0
commit f19ab67327
1 changed files with 11 additions and 2 deletions
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13
configure vendored
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@ -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