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-rw-r--r--source4/lib/replace/aclocal.m41
-rw-r--r--source4/lib/replace/libreplace.m415
-rw-r--r--source4/lib/replace/libreplace_macros.m4187
3 files changed, 182 insertions, 21 deletions
diff --git a/source4/lib/replace/aclocal.m4 b/source4/lib/replace/aclocal.m4
new file mode 100644
index 0000000000..2a7ad94963
--- /dev/null
+++ b/source4/lib/replace/aclocal.m4
@@ -0,0 +1 @@
+m4_include(libreplace_macros.m4)
diff --git a/source4/lib/replace/libreplace.m4 b/source4/lib/replace/libreplace.m4
index 0c1d089217..1b3258e184 100644
--- a/source4/lib/replace/libreplace.m4
+++ b/source4/lib/replace/libreplace.m4
@@ -1,15 +1,5 @@
-dnl see if a declaration exists for a function or variable
-dnl defines HAVE_function_DECL if it exists
-dnl AC_HAVE_DECL(var, includes)
-AC_DEFUN(AC_HAVE_DECL,
-[
- AC_CACHE_CHECK([for $1 declaration],ac_cv_have_$1_decl,[
- AC_TRY_COMPILE([$2],[int i = (int)$1],
- ac_cv_have_$1_decl=yes,ac_cv_have_$1_decl=no)])
- if test x"$ac_cv_have_$1_decl" = x"yes"; then
- AC_DEFINE([HAVE_]translit([$1], [a-z], [A-Z])[_DECL],1,[Whether $1() is available])
- fi
-])
+
+LIBREPLACE_C99_STRUCT_INIT([],[])
dnl find the libreplace sources. This is meant to work both for
dnl libreplace standalone builds, and builds of packages using libreplace
@@ -167,7 +157,6 @@ AC_CHECK_FUNCS([syslog memset setnetgrent getnetgrent endnetgrent memcpy],,
[AC_MSG_ERROR([Required function not found])])
m4_include(getpass.m4)
-m4_include(libreplace_macros.m4)
m4_include(system/config.m4)
LIBREPLACE_C99_STRUCT_INIT(c99_struct_initialization=yes,
diff --git a/source4/lib/replace/libreplace_macros.m4 b/source4/lib/replace/libreplace_macros.m4
index 255009dd55..9cf06c1a37 100644
--- a/source4/lib/replace/libreplace_macros.m4
+++ b/source4/lib/replace/libreplace_macros.m4
@@ -1,16 +1,11 @@
-dnl C99 compiler check
-dnl -------------------------------------------------------
-dnl Copyright (C) Stefan (metze) Metzmacher 2004,2005
-dnl Released under the GNU GPL
-dnl -------------------------------------------------------
-dnl
-dnl adapted for libreplace by Andrew Tridgell
+#
+# This is a collection of useful autoconf macros
+#
############################################
# Check if the compiler handles c99 struct initialization, and if not try -AC99 and -c99 flags
# Usage: LIBREPLACE_C99_STRUCT_INIT(success-action,failure-action)
# changes CFLAGS to add -AC99 or -c99 if needed
-
AC_DEFUN([LIBREPLACE_C99_STRUCT_INIT],
[
saved_CFLAGS="$CFLAGS";
@@ -51,3 +46,179 @@ else
$2
fi
])
+
+dnl AC_PROG_CC_FLAG(flag)
+AC_DEFUN(AC_PROG_CC_FLAG,
+[AC_CACHE_CHECK(whether ${CC-cc} accepts -$1, ac_cv_prog_cc_$1,
+[echo 'void f(){}' > conftest.c
+if test -z "`${CC-cc} -$1 -c conftest.c 2>&1`"; then
+ ac_cv_prog_cc_$1=yes
+else
+ ac_cv_prog_cc_$1=no
+fi
+rm -f conftest*
+])])
+
+dnl see if a declaration exists for a function or variable
+dnl defines HAVE_function_DECL if it exists
+dnl AC_HAVE_DECL(var, includes)
+AC_DEFUN(AC_HAVE_DECL,
+[
+ AC_CACHE_CHECK([for $1 declaration],ac_cv_have_$1_decl,[
+ AC_TRY_COMPILE([$2],[int i = (int)$1],
+ ac_cv_have_$1_decl=yes,ac_cv_have_$1_decl=no)])
+ if test x"$ac_cv_have_$1_decl" = x"yes"; then
+ AC_DEFINE([HAVE_]translit([$1], [a-z], [A-Z])[_DECL],1,[Whether $1() is available])
+ fi
+])
+
+
+# AC_CHECK_LIB_EXT(LIBRARY, [EXT_LIBS], [FUNCTION],
+# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
+# [ADD-ACTION-IF-FOUND],[OTHER-LIBRARIES])
+# ------------------------------------------------------
+#
+# Use a cache variable name containing both the library and function name,
+# because the test really is for library $1 defining function $3, not
+# just for library $1. Separate tests with the same $1 and different $3s
+# may have different results.
+#
+# Note that using directly AS_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$1_$3])
+# is asking for trouble, since AC_CHECK_LIB($lib, fun) would give
+# ac_cv_lib_$lib_fun, which is definitely not what was meant. Hence
+# the AS_LITERAL_IF indirection.
+#
+# FIXME: This macro is extremely suspicious. It DEFINEs unconditionally,
+# whatever the FUNCTION, in addition to not being a *S macro. Note
+# that the cache does depend upon the function we are looking for.
+#
+# It is on purpose we used `ac_check_lib_ext_save_LIBS' and not just
+# `ac_save_LIBS': there are many macros which don't want to see `LIBS'
+# changed but still want to use AC_CHECK_LIB_EXT, so they save `LIBS'.
+# And ``ac_save_LIBS' is too tempting a name, so let's leave them some
+# freedom.
+AC_DEFUN([AC_CHECK_LIB_EXT],
+[
+AH_CHECK_LIB_EXT([$1])
+ac_check_lib_ext_save_LIBS=$LIBS
+LIBS="-l$1 $$2 $7 $LIBS"
+AS_LITERAL_IF([$1],
+ [AS_VAR_PUSHDEF([ac_Lib_ext], [ac_cv_lib_ext_$1])],
+ [AS_VAR_PUSHDEF([ac_Lib_ext], [ac_cv_lib_ext_$1''])])dnl
+
+m4_ifval([$3],
+ [
+ AH_CHECK_FUNC_EXT([$3])
+ AS_LITERAL_IF([$1],
+ [AS_VAR_PUSHDEF([ac_Lib_func], [ac_cv_lib_ext_$1_$3])],
+ [AS_VAR_PUSHDEF([ac_Lib_func], [ac_cv_lib_ext_$1''_$3])])dnl
+ AC_CACHE_CHECK([for $3 in -l$1], ac_Lib_func,
+ [AC_TRY_LINK_FUNC($3,
+ [AS_VAR_SET(ac_Lib_func, yes);
+ AS_VAR_SET(ac_Lib_ext, yes)],
+ [AS_VAR_SET(ac_Lib_func, no);
+ AS_VAR_SET(ac_Lib_ext, no)])
+ ])
+ AS_IF([test AS_VAR_GET(ac_Lib_func) = yes],
+ [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$3))])dnl
+ AS_VAR_POPDEF([ac_Lib_func])dnl
+ ],[
+ AC_CACHE_CHECK([for -l$1], ac_Lib_ext,
+ [AC_TRY_LINK_FUNC([main],
+ [AS_VAR_SET(ac_Lib_ext, yes)],
+ [AS_VAR_SET(ac_Lib_ext, no)])
+ ])
+ ])
+LIBS=$ac_check_lib_ext_save_LIBS
+
+AS_IF([test AS_VAR_GET(ac_Lib_ext) = yes],
+ [m4_default([$4],
+ [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$1))
+ case "$$2" in
+ *-l$1*)
+ ;;
+ *)
+ $2="-l$1 $$2"
+ ;;
+ esac])
+ [$6]
+ ],
+ [$5])dnl
+AS_VAR_POPDEF([ac_Lib_ext])dnl
+])# AC_CHECK_LIB_EXT
+
+# AH_CHECK_LIB_EXT(LIBNAME)
+# ---------------------
+m4_define([AH_CHECK_LIB_EXT],
+[AH_TEMPLATE(AS_TR_CPP(HAVE_LIB$1),
+ [Define to 1 if you have the `]$1[' library (-l]$1[).])])
+
+dnl AC_SEARCH_LIBS_EXT(FUNCTION, SEARCH-LIBS, EXT_LIBS,
+dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
+dnl [OTHER-LIBRARIES])
+dnl --------------------------------------------------------
+dnl Search for a library defining FUNC, if it's not already available.
+AC_DEFUN([AC_SEARCH_LIBS_EXT],
+[AC_CACHE_CHECK([for library containing $1], [ac_cv_search_ext_$1],
+[
+ac_func_search_ext_save_LIBS=$LIBS
+ac_cv_search_ext_$1=no
+AC_LINK_IFELSE([AC_LANG_CALL([], [$1])],
+ [ac_cv_search_ext_$1="none required"])
+if test "$ac_cv_search_ext_$1" = no; then
+ for ac_lib in $2; do
+ LIBS="-l$ac_lib $$3 $6 $ac_func_search_save_ext_LIBS"
+ AC_LINK_IFELSE([AC_LANG_CALL([], [$1])],
+ [ac_cv_search_ext_$1="-l$ac_lib"
+break])
+ done
+fi
+LIBS=$ac_func_search_ext_save_LIBS])
+AS_IF([test "$ac_cv_search_ext_$1" != no],
+ [test "$ac_cv_search_ext_$1" = "none required" || $3="$ac_cv_search_ext_$1 $$3"
+ $4],
+ [$5])dnl
+])
+
+dnl check for a function in a $LIBS and $OTHER_LIBS libraries variable.
+dnl AC_CHECK_FUNC_EXT(func,OTHER_LIBS,IF-TRUE,IF-FALSE)
+AC_DEFUN([AC_CHECK_FUNC_EXT],
+[
+ AH_CHECK_FUNC_EXT($1)
+ ac_check_func_ext_save_LIBS=$LIBS
+ LIBS="$2 $LIBS"
+ AS_VAR_PUSHDEF([ac_var], [ac_cv_func_ext_$1])dnl
+ AC_CACHE_CHECK([for $1], ac_var,
+ [AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([$1])],
+ [AS_VAR_SET(ac_var, yes)],
+ [AS_VAR_SET(ac_var, no)])])
+ LIBS=$ac_check_func_ext_save_LIBS
+ AS_IF([test AS_VAR_GET(ac_var) = yes],
+ [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1])) $3],
+ [$4])dnl
+AS_VAR_POPDEF([ac_var])dnl
+])# AC_CHECK_FUNC
+
+# AH_CHECK_FUNC_EXT(FUNCNAME)
+# ---------------------
+m4_define([AH_CHECK_FUNC_EXT],
+[AH_TEMPLATE(AS_TR_CPP(HAVE_$1),
+ [Define to 1 if you have the `]$1[' function.])])
+
+dnl Define an AC_DEFINE with ifndef guard.
+dnl AC_N_DEFINE(VARIABLE [, VALUE])
+define(AC_N_DEFINE,
+[cat >> confdefs.h <<\EOF
+[#ifndef] $1
+[#define] $1 ifelse($#, 2, [$2], $#, 3, [$2], 1)
+[#endif]
+EOF
+])
+
+dnl Add an #include
+dnl AC_ADD_INCLUDE(VARIABLE)
+define(AC_ADD_INCLUDE,
+[cat >> confdefs.h <<\EOF
+[#include] $1
+EOF
+])
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