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-rw-r--r--colm/Makefile.am6
-rw-r--r--configure.in67
2 files changed, 52 insertions, 21 deletions
diff --git a/colm/Makefile.am b/colm/Makefile.am
index 19bb3dc1..c4a3504a 100644
--- a/colm/Makefile.am
+++ b/colm/Makefile.am
@@ -75,15 +75,15 @@ version.h: Makefile
if BUILD_PARSERS
lmparse.h: lmparse.kh
- kelbt -o $@ $<
+ $(KELBT) -o $@ $<
lmparse.cc: lmparse.kl lmparse.kh
- kelbt -o $@ $<
+ $(KELBT) -o $@ $<
lmscan.cc: lmparse.h
lmscan.cc: lmscan.rl
- ragel -G2 -o $@ $<
+ $(RAGEL) -G2 -o $@ $<
endif
diff --git a/configure.in b/configure.in
index a5fcc823..59bf09f1 100644
--- a/configure.in
+++ b/configure.in
@@ -28,9 +28,9 @@ AC_CONFIG_HEADER([colm/config.h colm/defs.h])
dnl Choose defaults for the build_parsers and build_manual vars. If the dist
dnl file is present in the root then default to no, otherwise go for it.
-AC_CHECK_FILES( $srcdir/DIST,
- [ . $srcdir/DIST; ],
- [ build_parsers=yes; build_manual=yes; ] )
+AC_CHECK_FILES( [$srcdir/DIST],
+ [. $srcdir/DIST;],
+ [build_parsers=yes; build_manual=yes; ] )
dnl Set to true if the build system should generate parsers from ragel and kelbt
dnl sources. Set to false if generated files are included and not to be built
@@ -79,25 +79,56 @@ AC_ARG_ENABLE(debug,
# AC_ARG_ENABLE(log-match, "turns on match logging", AC_DEFINE(COLM_LOG_MATCH))
# AC_ARG_ENABLE(log-compile, "turns on compile logging", AC_DEFINE(COLM_LOG_COMPILE))
-if test $build_parsers = true; then
+if test "x$build_parsers" = "xyes"; then
dnl Check for Ragel
-AC_CHECK_PROG(RAGEL, ragel, ragel)
-if test -z "$RAGEL"; then
- echo
- echo "error: ragel is required to build the parsers"
- echo
- exit 1
-fi
+AC_ARG_WITH(ragel,
+ [AC_HELP_STRING([--with-ragel], [location of ragel install])],
+ [
+ # with value specified
+ RAGEL="$withval/bin/ragel"
+ AC_CHECK_FILES(
+ [$RAGEL],
+ [],
+ [AC_ERROR([ragel is required to build this package])]
+ )
+ ],
+ [
+ AC_CHECK_PROG(RAGEL, ragel, ragel)
+ if test -z "$RAGEL"; then
+ echo
+ echo "error: ragel is required to build the parsers"
+ echo
+ exit 1
+ fi
+ ]
+)
dnl Check for Kelbt
-AC_CHECK_PROG(KELBT, kelbt, kelbt)
-if test -z "$KELBT"; then
- echo
- echo "error: kelbt is required to build the parsers"
- echo
- exit 1
-fi
+AC_ARG_WITH(kelbt,
+ [AC_HELP_STRING([--with-kelbt], [location of kelbt install])],
+ [
+ # with value specified
+ KELBT="$withval/bin/kelbt"
+ AC_CHECK_FILES(
+ [$RAGEL],
+ [],
+ [AC_ERROR([kelbt is required to build this package])]
+ )
+ ],
+ [
+ AC_CHECK_PROG(KELBT, kelbt, kelbt)
+ if test -z "$KELBT"; then
+ echo
+ echo "error: kelbt is required to build the parsers"
+ echo
+ exit 1
+ fi
+ ]
+)
+
+AC_SUBST(RAGEL)
+AC_SUBST(KELBT)
fi # build_parsers