git: 86aa24afc629 - main - math/eclib: work-around to build with clang 16

The branch main has been updated by thierry:

URL: https://cgit.FreeBSD.org/ports/commit/?id=86aa24afc629aefb9501fc55b6cdf1b94ce717e3

commit 86aa24afc629aefb9501fc55b6cdf1b94ce717e3
Author:     Thierry Thomas <thierry@FreeBSD.org>
AuthorDate: 2023-06-25 16:36:53 +0000
Commit:     Thierry Thomas <thierry@FreeBSD.org>
CommitDate: 2023-06-25 16:36:53 +0000

    math/eclib: work-around to build with clang 16
    
    Adding "CXXFLAGS+=-std=c++11" to fix the build on 14-CURRENT.
    
    Without that, it fails with this error:
    
    In file included from unimod.cc:24:
    In file included from ./eclib/unimod.h:27:
    In file included from ./eclib/interface.h:51:
    ./eclib/templates.h:64:12: error: no member named 'ptr_fun' in namespace 'std'
    using std::ptr_fun;
          ~~~~~^
    --- interface.lo ---
    In file included from interface.cc:24:
    In file included from ./eclib/interface.h:51:
    ./eclib/templates.h:64:12: error: no member named 'ptr_fun' in namespace 'std'
    using std::ptr_fun;
          ~~~~~^
    1 error generated.
    *** [interface.lo] Error code 1
    
    PR:             271047
    Reported by:    pkg-fallout
---
 math/eclib/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/math/eclib/Makefile b/math/eclib/Makefile
index 2bba0ad45dd2..528c05998935 100644
--- a/math/eclib/Makefile
+++ b/math/eclib/Makefile
@@ -21,6 +21,7 @@ USES=		autoreconf compiler:c++11-lang libtool localbase
 
 OPTIONS_DEFINE=	DOCS
 
+CXXFLAGS+=	-std=c++11
 LIBS+=		"-lm"
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-flint=${LOCALBASE} --with-boost=${LOCALBASE}