Hello, xlf has two pecularities, I found out about the hard way, which might break _AC_PROG_FC_V_OUTPUT:
1. The list of flags is not only comma-separated but also enclosed in parentheses. This is fine as long as the last argument is of no import to the linker, but in case it is and is picked up by _AC_PROG_FC_V_OUTPUT, all kinds of "funny" errors result. 2. The -ipa step adds a -link option which must not be used from the front-ends and is mistaken for a request to link libink.a. I've attached a patch to fix these issues in the version I found in the repository at git://git.sv.gnu.org/autoconf today. Greetings, Thomas -- Thomas Jahns DKRZ GmbH, Department: Application software Deutsches Klimarechenzentrum Bundesstraße 45a D-20146 Hamburg Phone: +49-40-460094-151 Fax: +49-40-460094-270 Email: Thomas Jahns <ja...@dkrz.de>
From 34aec866b0bd910a76f9b675efb310b9db5abe3f Mon Sep 17 00:00:00 2001 From: Thomas Jahns <ja...@dkrz.de> Date: Mon, 2 Jan 2012 16:03:41 +0100 Subject: [PATCH] Fix edge cases in xlf library flags. --- lib/autoconf/fortran.m4 | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/lib/autoconf/fortran.m4 b/lib/autoconf/fortran.m4 index e630f27..faa0640 100644 --- a/lib/autoconf/fortran.m4 +++ b/lib/autoconf/fortran.m4 @@ -529,9 +529,12 @@ ac_[]_AC_LANG_ABBREV[]_v_output="`echo $ac_[]_AC_LANG_ABBREV[]_v_output | # and (ugh) tested at some point. case $ac_[]_AC_LANG_ABBREV[]_v_output in # If we are using xlf then replace all the commas with spaces. + # Also xlf appends a closing paren on its output and the ipa step adds a + # -link argument that might be mistaken for a library *xlfentry*) - ac_[]_AC_LANG_ABBREV[]_v_output=`echo $ac_[]_AC_LANG_ABBREV[]_v_output | sed 's/,/ /g'` ;; - + ac_[]_AC_LANG_ABBREV[]_v_output=`echo "$ac_[]_AC_LANG_ABBREV[]_v_output" | sed 's/,/ /g +s/) *$//g +s/ -link / /g'` ;; # With Intel ifc, ignore the quoted -mGLOB_options_string stuff (quoted # $LIBS confuse us, and the libraries appear later in the output anyway). *mGLOB_options_string*) -- 1.7.2.5
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