config:

[pf3gnuchains/gcc-fork.git] / libmudflap / configure.ac

diff --git a/libmudflap/configure.ac b/libmudflap/configure.ac
index 04020b2..038bac5 100644 (file)
--- a/libmudflap/configure.ac
+++ b/libmudflap/configure.ac
@@ -24,7 +24,7 @@ AC_EXEEXT
 
 AM_ENABLE_MULTILIB(, ..)
 
-target_alias=${target_alias-$target}
+target_alias=${target_alias-$host_alias}
 AC_SUBST(target_alias)
 
 AC_CONFIG_HEADERS(config.h)
@@ -60,11 +60,12 @@ AC_TRY_COMPILE([
 enable_shared=no])
 
 AC_CHECK_HEADERS(stdint.h execinfo.h signal.h dlfcn.h dirent.h pwd.h grp.h \
-  netdb.h sys/ipc.h sys/sem.h sys/shm.h sys/wait.h sys/socket.h ctype.h mntent.h \
-  sys/socket.h netinet/in.h arpa/inet.h dlfcn.h)
+  netdb.h sys/ipc.h sys/sem.h sys/shm.h sys/wait.h ctype.h mntent.h \
+  sys/socket.h netinet/in.h arpa/inet.h dlfcn.h sys/mman.h)
 
 AC_CHECK_FUNCS(backtrace backtrace_symbols gettimeofday signal)
-AC_CHECK_FUNCS(fopen64 fseeko64 ftello64 stat64)
+AC_CHECK_FUNCS(fopen64 fseeko64 ftello64 stat64 freopen64)
+AC_CHECK_FUNCS(setbuf setbuffer setlinebuf setvbuf)
 AC_CHECK_FUNCS(strnlen memrchr strncpy memmem sethostname)
 AC_CHECK_FUNCS(__ctype_b_loc __ctype_tolower_loc __ctype_toupper_loc)
 AC_CHECK_FUNCS(getlogin cuserid getpwnam getpwuid getpwent getgrnam getgrgid getgrent)
@@ -72,7 +73,7 @@ AC_CHECK_FUNCS(getlogin_r getpwnam_r getpwuid_r getgrnam_r getgrgid_r)
 AC_CHECK_FUNCS(getservent getservbyname getservbyport getaddrinfo gai_strerror)
 AC_CHECK_FUNCS(getprotoent getprotobyname getprotobynumber)
 AC_CHECK_FUNCS(getmntent setmntent addmntent)
-AC_CHECK_FUNCS(inet_ntoa)
+AC_CHECK_FUNCS(inet_ntoa mmap munmap)
 
 AC_TRY_COMPILE([#include <sys/types.h>
 #include <sys/ipc.h>
@@ -131,12 +132,6 @@ AC_SUBST(build_libmudflapth)
 
 AC_CHECK_LIB(dl, dlsym)
 
-# Process the option "--enable-version-specific-runtime-libs"
-gcc_version_trigger=${srcdir}/../gcc/version.c
-gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
-gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
-AC_SUBST(gcc_version)
-
 # Calculate toolexeclibdir
 # Also toolexecdir, though it's only used in toolexeclibdir
 case ${version_specific_libs} in
@@ -145,7 +140,7 @@ case ${version_specific_libs} in
     # and header files if --enable-version-specific-runtime-libs option
     # is selected.
     toolexecdir='$(libdir)/gcc/$(target_alias)'
-    toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
+    toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
     ;;
   no)
     if test -n "$with_cross_host" &&
@@ -228,11 +223,29 @@ AC_MSG_RESULT($ac_fdsections)
 AC_SUBST(SECTION_FLAGS)
 
 
+# Check for the name of the symbol used for the entry point.
+AC_CACHE_CHECK([for the name of the symbol used for the entry point],
+  [mudflap_cv_entry_point], [
+for name in _start __start unknown; do
+  AC_LINK_IFELSE([AC_LANG_PROGRAM([extern char $name;], [$name = 0;])],
+                [break])
+done
+mudflap_cv_entry_point="$name"])
+if test "$mudflap_cv_entry_point" = unknown; then
+  AC_MSG_ERROR([none of the known symbol names works])
+fi
+AC_DEFINE_UNQUOTED([ENTRY_POINT], [$mudflap_cv_entry_point],
+  [Define to the name of the symbol used for the entry point.])
+
+
 if test ${multilib} = yes; then
   multilib_arg="--enable-multilib"
 else
   multilib_arg=
 fi
 
-AC_CONFIG_FILES([Makefile testsuite/Makefile testsuite/mfconfig.exp mf-runtime.h])
+# See if we support thread-local storage.
+GCC_CHECK_TLS
+
+AC_CONFIG_FILES([Makefile testsuite/Makefile testsuite/mfconfig.exp])
 AC_OUTPUT