From ad49af2601018298478af6ea6f8ae0ce323d7b28 Mon Sep 17 00:00:00 2001
From: orbea <orbea@riseup.net>
Date: Wed, 4 May 2022 10:23:51 -0700
Subject: [PATCH] Fix build without .la files

Many distros do no ship .la files which breaks the build
and additionally when using slibtool instead of GNU libtool
the .la files are not installed by default.

This fixes the build to use the linker flags -lcolm and -lfsm
instead.
---
 configure.ac    | 16 ++++++++++++----
 src/Makefile.am |  1 -
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/configure.ac b/configure.ac
index 6b3a5b4b..9cee5e5f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -44,16 +44,24 @@ AC_ARG_WITH(colm,
 	[
 		COLM="$withval/bin/colm"
 		COLM_WRAP="$withval/bin/colm-wrap"
-		CPPFLAGS="-I$withval/include ${CPPFLAGS}"
 		CPPFLAGS="-I$withval/include/aapl ${CPPFLAGS}"
-		LDFLAGS="-L$withval/lib ${LDFLAGS}"
-		LIBCOLM_LA="$withval/lib/libcolm.la"
-		LIBFSM_LA="$withval/lib/libfsm.la"
 		COLM_SHARE="$withval/share"
 	],
 	[]
 )
 
+AC_CHECK_LIB(
+	[colm],
+	[colm_run_program],
+	[LIBCOLM_LA=-lcolm],
+	[AC_ERROR([libcolm is required to build ragel])]
+)
+AC_CHECK_LIB(
+	[fsm],
+	[hostLangAsm],
+	[LIBFSM_LA=-lfsm],
+	[AC_ERROR([libfsm is required to build ragel])]
+)
 AC_CHECK_FILES(
 	[$COLM],
 	[],
diff --git a/src/Makefile.am b/src/Makefile.am
index c4fe531c..377f7aa4 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -39,7 +39,6 @@ nodist_ragel_SOURCES = \
 	parse.c rlreduce.cc
 
 ragel_LDADD = $(LIBFSM_LA) $(LIBCOLM_LA) libragel.la
-ragel_DEPENDENCIES = $(LIBFSM_LA) $(LIBCOLM_LA) libragel.la
 
 BUILT_SOURCES = \
 	version.h \
-- 
2.35.1