merge from gcc

[deliverable/binutils-gdb.git] / libiberty / configure.in

diff --git a/libiberty/configure.in b/libiberty/configure.in
index 6d06c0af2d0ab5f55ca2446d05922cdfd40595c9..499e4678affe2a4d42cc3ea20bbdf0d115ba554f 100644 (file)
--- a/libiberty/configure.in
+++ b/libiberty/configure.in
@@ -83,9 +83,11 @@ funcs="$funcs atexit"
 funcs="$funcs basename"
 funcs="$funcs bcmp"
 funcs="$funcs bcopy"
+funcs="$funcs bsearch"
 funcs="$funcs bzero"
 funcs="$funcs calloc"
 funcs="$funcs clock"
+funcs="$funcs ffs"
 funcs="$funcs getcwd"
 funcs="$funcs getpagesize"
 funcs="$funcs index"
@@ -127,13 +129,13 @@ checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gett
 # These are neither executed nor required, but they help keep
 # autoheader happy without adding a bunch of text to acconfig.h.
 if test "x" = "y"; then
-  AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bzero calloc clock getcwd)
-  AC_CHECK_FUNCS(getpagesize index insque mkstemps memchr memcmp memcpy memmove)
-  AC_CHECK_FUNCS(memset putenv random rename rindex sigsetmask strcasecmp)
-  AC_CHECK_FUNCS(setenv strchr strdup strncasecmp strrchr strstr strtod strtol)
-  AC_CHECK_FUNCS(strtoul tmpnam vasprintf vfprintf vprintf vsprintf waitpid)
-  AC_CHECK_FUNCS(getrusage on_exit psignal strerror strsignal sysconf times)
-  AC_CHECK_FUNCS(sbrk gettimeofday)
+  AC_CHECK_FUNCS(asprintf atexit basename bcmp bcopy bsearch bzero calloc clock)
+  AC_CHECK_FUNCS(getcwd getpagesize index insque mkstemps memchr memcmp memcpy)
+  AC_CHECK_FUNCS(memmove memset putenv random rename rindex sigsetmask)
+  AC_CHECK_FUNCS(strcasecmp setenv strchr strdup strncasecmp strrchr strstr)
+  AC_CHECK_FUNCS(strtod strtol strtoul tmpnam vasprintf vfprintf vprintf)
+  AC_CHECK_FUNCS(vsprintf waitpid getrusage on_exit psignal strerror strsignal)
+  AC_CHECK_FUNCS(sysconf times sbrk gettimeofday ffs)
   AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.])
   AC_DEFINE(HAVE_SYS_NERR,    1, [Define if you have the sys_nerr variable.])
   AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.])
@@ -141,8 +143,7 @@ fi
 
 # For each of these functions, if the host does not provide the
 # function we want to put FN.o in LIBOBJS, and if the host does
-# provide the function, we want to define HAVE_FN in config.h.  Also,
-# if the host does not provide alloca, we set ALLOCA to alloca.o
+# provide the function, we want to define HAVE_FN in config.h.
 
 setobjs=
 CHECK=
@@ -157,7 +158,6 @@ if test -n "${with_target_subdir}"; then
   # newlib provide and which ones we will be expected to provide.
 
   if test "x${with_newlib}" = "xyes"; then
-    ALLOCA="alloca.o"
     LIBOBJS="asprintf.o basename.o insque.o random.o strdup.o vasprintf.o"
 
     for f in $funcs; do
@@ -177,6 +177,12 @@ if test -n "${with_target_subdir}"; then
     # Of the functions in $checkfuncs, newlib only has strerror.
     AC_DEFINE_NOAUTOHEADER(HAVE_STRERROR)
 
+    case "${host}" in
+      *-*-cygwin*)
+       AC_DEFINE(HAVE_SYS_ERRLIST)
+       ;;
+    esac
+
     setobjs=yes
 
   fi
@@ -276,28 +282,7 @@ if test -z "${setobjs}"; then
   # tests.  This will only work if the compiler works.
   AC_PROG_CC_WORKS
   AC_REPLACE_FUNCS($funcs)
-
-  case "${host}" in
-  *-*-interix)
-    # On Interix, it wrongly concludes that the MSVC compiler supports alloca.
-    # (MSVC does on Win32, not on Interix.)
-    # This should be temporary.
-
-    ac_cv_header_alloca_h=no
-    ac_cv_func_alloca_works=no
-    ALLOCA=alloca.o
-    cat >> confdefs.h <<\EOF
-#define C_ALLOCA 1
-EOF
-    cat >> confdefs.h <<EOF
-#define STACK_DIRECTION -1
-EOF
-    ;;
-  *)
-    AC_FUNC_ALLOCA
-    ;;
-  esac
-
+  libiberty_AC_FUNC_C_ALLOCA
   AC_FUNC_VFORK
   if test $ac_cv_func_vfork_works = no; then
     LIBOBJS="$LIBOBJS vfork.o"