Built 2.5.6 using libgcrypt 1.11.1, but gpg output still says 1.11.0?

[Vinay Sajip]

> How did you build it?  If you did a standard build, did you run ldconfig?  What did the configure run told about libgcrypt?  Check the output of "gpgconf -V".

OK, I tracked it down. libgcrypt 1.11.1 isn't building on my system using the Makefile generated by configure. Here's where it fails:
libtool: link: gcc -I/home/vinay/tmp/include -g -O2 -fvisibility=hidden -fno-delete-null-pointer-checks -Wall -o t-thread-local t-thread-local.o -Wl,--disable-new-dtags  ../src/.libs/libgcrypt.so ../compat/.libs/libcompat.a -L/home/vinay/tmp/lib /home/vinay/tmp/lib/libgpg-error.so -Wl,-rpath -Wl,/home/vinay/sw/libgcrypt-1.11.1/src/.libs -Wl,-rpath -Wl,/home/vinay/tmp/lib -Wl,-rpath -Wl,/home/vinay/tmp/lib
t-thread-local.o: In function `check_thread_local':
/home/vinay/sw/libgcrypt-1.11.1/tests/t-thread-local.c:124: undefined reference to `pthread_create'
/home/vinay/sw/libgcrypt-1.11.1/tests/t-thread-local.c:129: undefined reference to `pthread_join'
collect2: error: ld returned 1 exit status
Makefile:884: recipe for target 't-thread-local' failed
make[2]: *** [t-thread-local] Error 1
make[2]: Leaving directory '/home/vinay/sw/libgcrypt-1.11.1/tests'

In the Makefile, the recipe to make t-thread-local is:
t-thread-local$(EXEEXT): $(t_thread_local_OBJECTS) $(t_thread_local_DEPENDENCIES) $(EXTRA_t_thread_local_DEPENDENCIES)
    @rm -f t-thread-local$(EXEEXT)
    $(AM_V_CCLD)$(LINK) $(t_thread_local_OBJECTS) $(t_thread_local_LDADD) $(LIBS)

However, LIBS is the empty string, so there's a -pthread flag missing. Adding it in by hand to the Makefile allows the build to complete.
So it looks like a problem with ./configure not specifying -pthread when building t-thread-local. Moreover, t-thread-local is new in 1.11.1 - it's not present in 1.11.0.
Kind regards,
Vinay Sajip  
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