[SOLVED] no luck with libc++ on -current: xlocale.h missing

Martinus2u · 08-26-2017, 05:35 AM

I tried to install libc++ from SBO which is now a dependency for discord. I'm on -current.

I found libc++ has a dependency on Sphinx, which in turn has 10 named dependencies (plus one subdependency) in the .info file, plus 5 unnamed dependencies. I built & installed all of these.

The build breaks with

Code:

[ 50%] Building CXX object projects/libcxx/lib/CMakeFiles/cxx.dir/__/src/algorithm.cpp.o
In file included from /tmp/SBo/llvm-3.8.0/projects/libcxx/src/algorithm.cpp:11:
In file included from /tmp/SBo/llvm-3.8.0/projects/libcxx/include/random:1646:
In file included from /tmp/SBo/llvm-3.8.0/projects/libcxx/include/istream:163:
In file included from /tmp/SBo/llvm-3.8.0/projects/libcxx/include/ostream:138:
In file included from /tmp/SBo/llvm-3.8.0/projects/libcxx/include/ios:216:
/tmp/SBo/llvm-3.8.0/projects/libcxx/include/__locale:39:11: fatal error: 'xlocale.h' file not found
# include <xlocale.h>
          ^~~~~~~~~~~
1 error generated.
make[3]: *** [projects/libcxx/lib/CMakeFiles/cxx.dir/build.make:63: projects/libcxx/lib/CMakeFiles/cxx.dir/__/src/algorithm.cpp.o] Error 1
make[2]: *** [CMakeFiles/Makefile2:12277: projects/libcxx/lib/CMakeFiles/cxx.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:12252: projects/libcxx/lib/CMakeFiles/install-libcxx.dir/rule] Error 2
make: *** [Makefile:3618: install-libcxx] Error 2

libc++:
Would you like to continue processing the rest of the
queue or would you like to abort?  If this failed
package is a dependency of another package in the queue
then it may not make sense to continue.

(Y)es to continue, (N)o to abort, (R)etry the build?:

Does anyone know what package "xlocale.h" belongs to? Or how to compile libc++?

Thanks

phenixia2003 · 08-26-2017, 05:45 AM

Hello,

Seems to be in glibc :

Code:

grep -R "xlocale.h" /var/log/packages/
/var/log/packages/glibc-2.23-x86_64-4_slack14.2:usr/include/xlocale.h

--
SeB

Martinus2u · 08-26-2017, 05:51 AM

strangely not in my glibc... my glibc packages are

Code:

glibc-2.26_multilib-x86_64-2alien
glibc-i18n-2.26_multilib-x86_64-2alien
glibc-profile-2.26_multilib-x86_64-2alien
glibc-solibs-2.26_multilib-x86_64-2alien
glibc-zoneinfo-2015g_multilib-noarch-1alien

phenixia2003 · 08-26-2017, 06:01 AM

Hello,

As stated here, xlocale.h was removed in glibc 2.26
--
SeB

phenixia2003 · 08-26-2017, 06:08 AM

Hello,

Found this commit to fix building of libc++ with glibc 2.26

--
SeB

Martinus2u · 08-26-2017, 09:50 AM

Excellent find. Commenting out the include, I finally managed to build libc++. ^_^

slacktroll · 01-21-2018, 06:22 PM

Thank you!

in libc++.SlackBuild (from Slackware64-14.2 on slackbuilds.org)

Code:

# under
mv libcxx-${VERSION}.src libcxx
# patch file
cd libcxx 
patch -p0 < $CWD/patch.txt
cd ..

patch.txt:

Code:

--- include/__locale	2015-11-24 11:24:54.000000000 +0100
+++ include/__locale	2018-01-22 01:09:18.810338513 +0100
@@ -34,7 +34,7 @@
 # include <support/solaris/xlocale.h>
 #elif defined(_NEWLIB_VERSION)
 # include <support/newlib/xlocale.h>
-#elif (defined(__GLIBC__) || defined(__APPLE__)      || defined(__FreeBSD__) \
+#elif (defined(__APPLE__)      || defined(__FreeBSD__) \
     || defined(__EMSCRIPTEN__) || defined(__IBMCPP__))
 # include <xlocale.h>
 #elif defined(_LIBCPP_HAS_MUSL_LIBC)

ponce · 01-22-2018, 12:19 AM

hi slacktroll,

things are changed since last august: you don't need to explicitly install libc++ in slackware current now, as it has been already included as part of the llvm package (on december 22nd).