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[pspp-builds.git] / acinclude.m4

diff --git a/acinclude.m4 b/acinclude.m4
index 0eb9c1f31a1562b2b1ee6249cbc9547a2b4e6bb7..5f358087509badc11851f87b11d204e2853631cc 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -63,10 +63,10 @@ AC_DEFUN([PSPP_OFF_T],
   `--disable-largefile' or `CFLAGS=-ansi'.])])
 ])
 
   `--disable-largefile' or `CFLAGS=-ansi'.])])
 ])
 

-dnl Check whether a warning flag is accepted.
+dnl Check whether a C compiler option is accepted.

 dnl If so, add it to CFLAGS.
 dnl If so, add it to CFLAGS.

-dnl Example: PSPP_ENABLE_WARNING(-Wdeclaration-after-statement)
-AC_DEFUN([PSPP_ENABLE_WARNING],
+dnl Example: PSPP_ENABLE_OPTION(-Wdeclaration-after-statement)
+AC_DEFUN([PSPP_ENABLE_OPTION],

 [
   m4_define([pspp_cv_name], [pspp_cv_[]m4_translit([$1], [-], [_])])dnl
   AC_CACHE_CHECK([whether $CC accepts $1], [pspp_cv_name], 
 [
   m4_define([pspp_cv_name], [pspp_cv_[]m4_translit([$1], [-], [_])])dnl
   AC_CACHE_CHECK([whether $CC accepts $1], [pspp_cv_name], 


@@ -81,7 +81,7 @@ AC_DEFUN([PSPP_ENABLE_WARNING],
 
 dnl Check for readline and history libraries.
 
 
 dnl Check for readline and history libraries.
 

-dnl Modified for PSPP by Ben Pfaff, based on readline.m4 serial 3 from
+dnl Modified for PSPP, based on readline.m4 serial 3 from

 dnl gnulib, which was written by Simon Josefsson, with help from Bruno
 dnl Haible and Oskar Liljeblad.
 
 dnl gnulib, which was written by Simon Josefsson, with help from Bruno
 dnl Haible and Oskar Liljeblad.
 


@@ -150,4 +150,39 @@ AC_DEFUN([PSPP_READLINE],
   AC_SUBST(LTLIBREADLINE)
 ])
 
   AC_SUBST(LTLIBREADLINE)
 ])
 

+dnl Check for build tools.  Adapted from bfd library.
+
+AC_DEFUN([PSPP_CC_FOR_BUILD],
+[# Put a plausible default for CC_FOR_BUILD in Makefile.
+if test -z "$CC_FOR_BUILD"; then
+  if test "x$cross_compiling" = "xno"; then
+    CC_FOR_BUILD='$(CC)'
+  else
+    CC_FOR_BUILD=cc
+  fi
+fi
+AC_SUBST(CC_FOR_BUILD)
+# Also set EXEEXT_FOR_BUILD.
+if test "x$cross_compiling" = "xno"; then
+  EXEEXT_FOR_BUILD='$(EXEEXT)'
+else
+  AC_CACHE_CHECK([for build system executable suffix], pspp_cv_build_exeext,
+    [rm -f conftest*
+     echo 'int main () { return 0; }' > conftest.c
+     pspp_cv_build_exeext=
+     ${CC_FOR_BUILD} -o conftest conftest.c 1>&5 2>&5
+     for file in conftest.*; do
+       case $file in # (
+       *.c | *.o | *.obj | *.ilk | *.pdb) ;; # (
+       *) pspp_cv_build_exeext=`echo $file | sed -e s/conftest//` ;;
+       esac
+     done
+     rm -f conftest*
+     test x"${pspp_cv_build_exeext}" = x && pspp_cv_build_exeext=no])
+  EXEEXT_FOR_BUILD=""
+  test x"${pspp_cv_build_exeext}" != xno && EXEEXT_FOR_BUILD=${pspp_cv_build_exeex
+t}
+fi
+AC_SUBST(EXEEXT_FOR_BUILD)])
+

 dnl aclocal.m4 ends here
 dnl aclocal.m4 ends here