On Mon, Feb 21, 2022 at 11:27:37PM +0000, Stuart Henderson wrote:
> On 2022/02/21 22:12, Klemens Nanni wrote:
> > On Sat, Feb 19, 2022 at 02:40:24AM -0700, Kurt Mosiejczuk wrote:
> > > http://build-failures.rhaalovely.net/sparc64/2022-02-16/net/pmacct,postgresql.log
> > 
> > > checking for cdada_get_ver in -lcdada... no
> > > configure: error: Could not find libcdada
> > 
> > The dependency is correctly handled, but AC_CHECK_LIB chokes on how
> > ports-clang arches handle c++ libs.
> > 
> > COMPILER_LIBCXX has "stdc++" and "estdc++>=17" for base-clang and
> > ports-gcc, respectively.
> > 
> > This ends up in configure.ac's libcdada AC_CHECK_LIB check as can be
> > seen in the hackish diff below.
> > 
> > ${WRKBUILD}/config.log shows the actual error:
> > 
> > > configure:20504: checking for cdada_get_ver in -lcdada
> > > configure:20529: cc -o conftest -O2 -pipe -I/usr/local/include 
> > > -L/usr/local/lib conftest.c -lcdada  -lcdada -lestdc++>=17 -lpthread 
> > > -lpcap  -lm -lpthread >&5
> > > /usr/bin/ld: cannot find -lestdc++>=17
> > > collect2: error: ld returned 1 exit status
> > 
> > Removing the version spec makes configure work thus fixes the build,
> > but this hackish attempt doesn't look like a solution.
> > 
> > Leaving this here for others to chime in.
> 
> it _ought_ to use $(CXX) to try and link rather than $(CC), but I don't
> know if that's viable with this autoconf check.

Good point, I missed that.

> 
> >  .for i in ${COMPILER_LIBCXX}
> > -CXXLIB+= -l$i
> > +CXXLIB+= -l${i:C/[<>=]+[0-9.]+$//}
> >  .endfor
> 
> I am okay with this with a comment to explain the regex, e.g.
> 
> # strip off the library-specs(5) version number check
> 
> the libcdada port itself should have the same change
> 

Like that?  Thanks, I'll go with in a few days unless we come up with
something better.

Index: devel/libcdada/Makefile
===================================================================
RCS file: /home/cvs/ports/devel/libcdada/Makefile,v
retrieving revision 1.4
diff -u -p -r1.4 Makefile
--- devel/libcdada/Makefile     2 Nov 2021 00:00:24 -0000       1.4
+++ devel/libcdada/Makefile     21 Feb 2022 23:58:11 -0000
@@ -5,7 +5,7 @@ COMMENT=        basic data structures in C (lib
 GH_ACCOUNT=    msune
 GH_PROJECT=    libcdada
 GH_TAGNAME=    v0.3.4
-REVISION=      1
+REVISION=      2
 
 SHARED_LIBS += cdada                     0.0 # 0.0
 
@@ -34,6 +34,9 @@ post-patch:
        sed -i 's,-lstdc++,${CXXLIB},' ${WRKSRC}/examples/Makefile.am
 
 .include <bsd.port.mk>
+
 .for i in ${COMPILER_LIBCXX}
-CXXLIB+= -l$i
+# strip library-specs(5) which ld.bfd(1) does not understand
+# to fix configure on non-clang architectures
+CXXLIB+=       -l${i:C/[<>=]+[0-9.]+$//}
 .endfor
Index: net/pmacct/Makefile
===================================================================
RCS file: /home/cvs/ports/net/pmacct/Makefile,v
retrieving revision 1.34
diff -u -p -r1.34 Makefile
--- net/pmacct/Makefile 18 Feb 2021 13:24:04 -0000      1.34
+++ net/pmacct/Makefile 21 Feb 2022 23:57:27 -0000
@@ -3,6 +3,7 @@
 COMMENT=       passive IP network monitoring tools: traffic accounting, etc
 
 DISTNAME=      pmacct-1.7.6
+REVISION=      0
 CATEGORIES=    net
 
 HOMEPAGE=      http://www.pmacct.net/
@@ -75,6 +76,9 @@ post-install:
 .endif
 
 .include <bsd.port.mk>
+
 .for i in ${COMPILER_LIBCXX}
-CXXLIB+= -l$i
+# strip library-specs(5) which ld.bfd(1) does not understand
+# to fix configure on non-clang architectures
+CXXLIB+=       -l${i:C/[<>=]+[0-9.]+$//}
 .endfor

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