From 7a8bd24665dc2ea63fe1d95ccd52ff506774c21e Mon Sep 17 00:00:00 2001
From: panne <unknown>
Date: Mon, 10 Jan 2005 19:01:28 +0000
Subject: [PATCH] [project @ 2005-01-10 19:01:27 by panne] Refactored and
 cleaned up ld-related tests. Only tested mildly under
 Linux.

---
 aclocal.m4   |   87 +++++++++++++++++++++++++++++++++++-----------------------
 configure.ac |   20 ++------------
 2 files changed, 55 insertions(+), 52 deletions(-)

diff --git a/aclocal.m4 b/aclocal.m4
index 34542f2..3a8aa2e 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -330,48 +330,65 @@ AC_SUBST(AlexVersion)
 ])
 
 
-dnl
-dnl Check whether ld supports -x
-dnl
-AC_DEFUN(FPTOOLS_LD_X,
-[AC_CACHE_CHECK([whether ld understands -x], fptools_cv_ld_x,
-[
-echo 'foo() {}' > conftest.c
+# FP_PROG_LD
+# ----------
+# Sets the output variable LdCmd to the (non-Cygwin version of the) full path
+# of ld. Exits if no ld can be found
+AC_DEFUN([FP_PROG_LD],
+[AC_PATH_PROG([fp_prog_ld_raw], [ld])
+if test -z "$fp_prog_ld_raw"; then
+  AC_MSG_ERROR([cannot find ld in your PATH, no idea how to link])
+fi
+LdCmd=$fp_prog_ld_raw
+case $HostPlatform in
+  *mingw32) if test x${OSTYPE} != xmsys; then
+ 	      LdCmd="`cygpath -w ${fp_prog_ld_raw} | sed -e 's@\\\\@/@g'`"
+              AC_MSG_NOTICE([normalized ld command to $LdCmd])
+            fi
+            ;;
+esac
+AC_SUBST([LdCmd])
+])# FP_PROG_LD
+
+
+# FP_PROG_LD_X
+# ------------
+# Sets the output variable LdXFlag to -x if ld supports this flag, otherwise the
+# variable's value is empty.
+AC_DEFUN([FP_PROG_LD_X],
+[AC_REQUIRE([FP_PROG_LD])
+AC_CACHE_CHECK([whether ld understands -x], [fp_cv_ld_x],
+[echo 'foo() {}' > conftest.c
 ${CC-cc} -c conftest.c
-if ${LdCmd} -r -x -o foo.o conftest.o; then
-   fptools_cv_ld_x=yes
+if ${LdCmd} -r -x -o conftest2.o conftest.o; then
+   fp_cv_ld_x=yes
 else
-   fptools_cv_ld_x=no
+   fp_cv_ld_x=no
 fi
-rm -rf conftest.c conftest.o foo.o
-])
-if test "$fptools_cv_ld_x" = yes; then
-	LdXFlag=-x
+rm -rf conftest*])
+if test "$fp_cv_ld_x" = yes; then
+  LdXFlag=-x
 else
-	LdXFlag=
+  LdXFlag=
 fi
-AC_SUBST(LdXFlag)
-])
+AC_SUBST([LdXFlag])
+])# FP_PROG_LD_X
 
-dnl
-dnl Check for GNU ld
-dnl
-AC_DEFUN(FPTOOLS_GNU_LD,
-[AC_CACHE_CHECK([whether ld is GNU ld], fptools_cv_gnu_ld,
-[
-if ${LdCmd} -v | grep GNU 2>&1 >/dev/null; then
-   fptools_cv_gnu_ld=yes
-else
-   fptools_cv_gnu_ld=no
-fi
-])
-if test "$fptools_cv_gnu_ld" = yes; then
-	LdIsGNULd=YES
+
+# FP_PROG_LD_IS_GNU
+# -----------------
+# Sets the output variable LdIsGNULd to YES or NO, depending on whether it is
+# GNU ld or not.
+AC_DEFUN([FP_PROG_LD_IS_GNU],
+[AC_REQUIRE([FP_PROG_LD])
+AC_CACHE_CHECK([whether ld is GNU ld], [fp_cv_gnu_ld],
+[if ${LdCmd} --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then
+  fp_cv_gnu_ld=yes
 else
-	LdIsGNULd=NO
-fi
-AC_SUBST(LdIsGNULd)
-])
+  fp_cv_gnu_ld=no
+fi])
+AC_SUBST([LdIsGNULd], [`echo $fp_cv_gnu_ld | sed 'y/yesno/YESNO/'`])
+])# FP_PROG_LD_IS_GNU
 
 
 # FP_PROG_AR
diff --git a/configure.ac b/configure.ac
index 44353a1..7351b39 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1241,23 +1241,9 @@ AC_C_BIGENDIAN
 dnl ** check for leading underscores in symbol names
 FP_LEADING_UNDERSCORE
 
-dnl ** check for ld, and whether ld has -x option
-AC_PATH_PROG(LdCmdRaw, ld)
-case $HostOS_CPP in
- mingw32) 
-        if test "${OSTYPE}" == "msys"
-	   then
-             LdCmd=${LdCmdRaw}
-	   else
-             LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
-	fi
- 	   ;;
- *) LdCmd=${LdCmdRaw}
-    ;;
-esac
-AC_SUBST(LdCmd)
-FPTOOLS_LD_X
-FPTOOLS_GNU_LD
+dnl ** check for ld, whether it has an -x option, and if it is GNU ld
+FP_PROG_LD_X
+FP_PROG_LD_IS_GNU
 
 AC_CONFIG_FILES([mk/config.mk])
 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
-- 
1.7.10.4