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[committed] cleanups of top level configure.in (based on Paolo's)
- From: neroden at twcny dot rr dot com (Nathanael Nerode)
- To: gcc-patches at gcc dot gnu dot org
- Cc: gdb-patches at sources dot redhat dot com, binutils at sources dot redhat dot com
- Date: Tue, 16 Mar 2004 17:17:21 -0500
- Subject: [committed] cleanups of top level configure.in (based on Paolo's)
Thanks to Paolo for the original version of the DEFAULT_YACC + company
patch, although I modified it a little bit.
Bootstrapped i686-pc-linux-gnu (with no in-tree yacc, lex, m4); it gives
the same results as before. Committing to gcc and src. :-)
2004-03-15 Paolo Bonzini <bonzini@gnu.org>
Nathanael Nerode <neroden@gcc.gnu.org>
* configure.in (DEFAULT_YACC, DEFAULT_M4, DEFAULT_LEX):
Set with AC_CHECK_PROGS.
* configure.in: Fix comment typo from last patch.
* configure: Regenerate.
Index: configure.in
===================================================================
RCS file: /cvs/gcc/gcc/configure.in,v
retrieving revision 1.276
diff -u -r1.276 configure.in
--- configure.in 16 Mar 2004 00:03:30 -0000 1.276
+++ configure.in 16 Mar 2004 21:02:47 -0000
@@ -1070,7 +1070,7 @@
ACX_PROG_GNAT
-# By default, C is the only stage 1 langauge.
+# By default, C is the only stage 1 language.
stage1_languages=c
AC_SUBST(stage1_languages)
@@ -1497,62 +1497,12 @@
tooldir='${exec_prefix}'/${target_alias}
build_tooldir=${tooldir}
-# Generate a default definition for YACC. This is used if the makefile can't
-# locate bison or byacc in objdir.
-
-for prog in 'bison -y' byacc yacc
-do
- set dummy $prog; tmp=$2
- IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
- for dir in $PATH; do
- test -z "$dir" && dir=.
- if test -f $dir/$tmp; then
- DEFAULT_YACC="$prog"
- break
- fi
- done
- IFS="$save_ifs"
-
- test -n "$DEFAULT_YACC" && break
-done
-
-# Generate a default definition for M4. This is used if the makefile can't
-# locate m4 in objdir.
-
-for prog in gm4 gnum4 m4
-do
- set dummy $prog; tmp=$2
- IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
- for dir in $PATH; do
- test -z "$dir" && dir=.
- if test -f $dir/$tmp; then
- DEFAULT_M4="$prog"
- break
- fi
- done
- IFS="$save_ifs"
-
- test -n "$DEFAULT_M4" && break
-done
-
-# Generate a default definition for LEX. This is used if the makefile can't
-# locate flex in objdir.
-
-for prog in flex lex
-do
- set dummy $prog; tmp=$2
- IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
- for dir in $PATH; do
- test -z "$dir" && dir=.
- if test -f $dir/$tmp; then
- DEFAULT_LEX="$prog"
- break
- fi
- done
- IFS="$save_ifs"
-
- test -n "$DEFAULT_LEX" && break
-done
+# Generate default definitions for YACC, M4, LEX. These are used if the
+# Makefile can't locate these programs in objdir.
+MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
+AC_CHECK_PROGS([DEFAULT_YACC], ['bison -y' byacc yacc], [$MISSING bison])
+AC_CHECK_PROGS([DEFAULT_M4], [gm4 gnum4 m4], [$MISSING m4])
+AC_CHECK_PROGS([DEFAULT_LEX], [flex lex], [$MISSING flex])
# FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
# Set up the list of links to be made.
--
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