ports/184576: science/ghemical : fix build with gcc47

[Christoph Moench-Tegeder]

>Number:         184576
>Category:       ports
>Synopsis:       science/ghemical : fix build with gcc47
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Sat Dec 07 17:10:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Christoph Moench-Tegeder
>Release:        FreeBSD 9.2-RELEASE amd64
>Organization:
>Environment:
System: FreeBSD elch.exwg.net 9.2-RELEASE FreeBSD 9.2-RELEASE #11 r255911: Fri Sep 27 17:09:40 CEST 2013 cmt at elch.exwg.net:/usr/obj/usr/src/sys/ELCH amd64

lang/gcc47			gcc47-4.7.4.20131130
science/ghemical	ghemical-3.0.0_1

>Description:
Hi,

in an effort towards upgrading lang/gcc to gcc 4.7, I'm helping gerald@
in making ports gcc47-safe.
Please consider the following patch to your port. If you approve of the
patch, gerald@ has offered his help in commiting it.
If you're commiting yourself or have someone else commit this (or
another patch to the same effect), can you please add an additional
reference to ports/183342 in the commit message?
In my test environment, the port built successfully with lang/gcc47.

>How-To-Repeat:

>Fix:

Without this patch, the toolchain would pick the wrong libgcc_s
(the one from the system, which is too old for the newer gcc).

# add ${_GCC_RUNTIME} to linker path to direct ld away from the system libgcc_s
$ svn status
M       Makefile

Index: Makefile
===================================================================
--- Makefile	(revision 334026)
+++ Makefile	(working copy)
@@ -27,6 +27,7 @@
 USE_GNOME=	glib20 gtk20 libglade2
 USE_GL=		glut
 GNU_CONFIGURE=	yes
+LDFLAGS+=	-L${_GCC_RUNTIME}
 CONFIGURE_ARGS=	--enable-gamess --enable-mpqc --enable-openbabel --enable-gtk --enable-threads --enable-mopac7
 PLIST_SUB=	GHEMICAL_VERSION="${PORTVERSION}"
 

Regards,
Christoph
>Release-Note:
>Audit-Trail:
>Unformatted: