* m4/libtool.m4 (AC_LIBTOOL_PROG_CC_C_O): Some compilers

(e.g. Intel Linux icc compiler) write temporary files to the current
directory. These compilers do support -c and -o simultaneously but
wrongly fail the test due to the failure to create temporary
files. It is incorrect to penalize compilers which write temporary
files to the current directory so the 'chmod -w .' is therefore
removed.

diff --git a/ChangeLog b/ChangeLog
index 5171bf08778a9a3777c261aaa86a6bec73bc0ae9..cf8a583c5c22f96e0c22a539bbf5771cb22c10d6 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2004-01-22  Jeff Squyres  <jsquyres@lam-mpi.org>
+
+       * m4/libtool.m4 (AC_LIBTOOL_PROG_CC_C_O): Some compilers
+       (e.g. Intel Linux icc compiler) write temporary files to the current
+       directory. These compilers do support -c and -o simultaneously but
+       wrongly fail the test due to the failure to create temporary
+       files. It is incorrect to penalize compilers which write temporary
+       files to the current directory so the 'chmod -w .' is therefore
+       removed.
+
 2004-01-22  Gary V. Vaughan  <gary@gnu.org>
 
        * m4/libtool.m4 (LT_AC_PROG_EGREP): Wrapper for AC_PROG_GREP.

diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 5d6a5cf31834621658329deb3fc6cd5fc5bc3c72..8b7326fce2f894d5a123eb47404ec441e3ad99d7 100644 (file)
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -1311,13 +1311,6 @@ AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
    mkdir out
    printf "$lt_simple_compile_test_code" > conftest.$ac_ext
 
-   # According to Tom Tromey, Ian Lance Taylor reported there are C compilers
-   # that will create temporary files in the current directory regardless of
-   # the output directory.  Thus, making CWD read-only will cause this test
-   # to fail, enabling locking or at least warning the user not to do parallel
-   # builds.
-   chmod -w .
-
    lt_compiler_flag="-o out/conftest2.$ac_objext"
    # Insert the option either (1) after the last *FLAGS variable, or
    # (2) before a word containing "conftest.", or (3) at the end.