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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-03-14 14:07:00 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-03-14 14:07:00 +0000
commit999b58c1ff0d6f533c1fa7c110820c0ed26ec88e (patch)
treeff9e69b46d730aced4c883cf701115b146ceedcb
parente3c023337cf97487d9f6b970014b45adf9708bc2 (diff)
configure.ac: basic libs
* configure.ac: basic libraries like -lm are necessary for some extension libraries on some platforms. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62749 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r--configure.ac7
1 files changed, 5 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac
index 02fec2e0a4..d2f22b5744 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,7 +18,6 @@ AC_DISABLE_OPTION_CHECKING
AC_ARG_VAR([cflags], [additional CFLAGS])
AC_ARG_VAR([cppflags], [additional CPPFLAGS])
AC_ARG_VAR([cxxflags], [additional CXXFLAGS])
-ORIG_LIBS=$LIBS
{ # environment section
@@ -716,13 +715,16 @@ AS_CASE(["$target_os"],
dnl Checks for libraries.
AS_CASE(["$target_os"],[*bsd*|dragonfly*],[],[ac_cv_func_daemon=no])
+AS_UNSET(ORIG_LIBS)
POSTLINK=:
AC_SUBST(POSTLINK)
AS_CASE(["$target_os"],
[nextstep*], [ ],
[openstep*], [ ],
[rhapsody*], [ ],
-[darwin*], [ RUBY_PREPEND_OPTION(LIBS, -lobjc)
+[darwin*], [
+ ORIG_LIBS="$LIBS"
+ RUBY_PREPEND_OPTION(LIBS, -lobjc)
RUBY_APPEND_OPTIONS(CPPFLAGS, -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT)
AC_MSG_CHECKING(whether Mac OS X 10.5 or later)
AC_TRY_CPP([#include <AvailabilityMacros.h>
@@ -959,6 +961,7 @@ main()
ac_cv_func_round=no
],
[ LIBS="-lm $LIBS"])
+: ${ORIG_LIBS=$LIBS}
AC_CHECK_LIB(crypt, crypt) # glibc (GNU/Linux, GNU/Hurd, GNU/kFreeBSD)
AC_CHECK_LIB(dl, dlopen) # Dynamic linking for SunOS/Solaris and SYSV