Boost Build Error With --enable-proton

[defuse]

While working on #3786 I noticed my build fails with --enable-proton, in AX_BOOST_SYSTEM, in a fresh clone without any of the #3786 updates. It succeeds without --enable-proton. There's clearly another problem that the -lqpid-proton-cpp check fails but in that case configure.ac looks like it should just continue building without Proton. Instead, it makes the Boost::System check right below it fail somehow.

Commit: beb465d

Output:

...
checking for Berkeley DB C++ headers... default
checking for main in -ldb_cxx-6.2... yes
checking proton/connection.hpp usability... yes
checking proton/connection.hpp presence... yes
checking for proton/connection.hpp... yes
checking for main in -lqpid-proton-cpp... no
configure: WARNING: Proton libraries not found, disabling Proton support
checking for boostlib >= 1.62... yes
checking whether the Boost::System library is available... yes
configure: error: Could not find a version of the boost_system library!

config.log:

configure:18913: checking for proton/connection.hpp
configure:18913: result: yes
configure:18927: checking for main in -lqpid-proton-cpp
configure:18946: g++ -m64 -std=c++11 -o conftest -pipe -O1 -g -I/home/firexware/zcash/zfreshagain/depends/x86_64-unknown-linux-gnu/share/../include/  -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS -L/home/firexware/zcash/zfreshagain/depends/x86_64-unknown-linux-gnu/share/../lib  conftest.cpp -lqpid-proton-cpp  -lanl  >&5
/bin/ld: cannot find -lqpid-proton-cpp
collect2: error: ld returned 1 exit status
configure:18946: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "Zcash"
| #define PACKAGE_TARNAME "zcash"
| #define PACKAGE_VERSION "2.0.2"
| #define PACKAGE_STRING "Zcash 2.0.2"
| #define PACKAGE_BUGREPORT "https://github.com/zcash/zcash/issues"
| #define PACKAGE_URL ""
| #define HAVE_CXX11 1
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_DLFCN_H 1
| #define LT_OBJDIR ".libs/"
| #define HAVE_PTHREAD_PRIO_INHERIT 1
| #define HAVE_PTHREAD 1
| #define HAVE_DECL_STRERROR_R 1
| #define HAVE_STRERROR_R 1
| #define STRERROR_R_CHAR_P 1
| #define HAVE_FUNC_ATTRIBUTE_VISIBILITY 1
| #define HAVE_ENDIAN_H 1
| #define HAVE_BYTESWAP_H 1
| #define HAVE_STDIO_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_SYS_SELECT_H 1
| #define HAVE_SYS_PRCTL_H 1
| #define HAVE_GETADDRINFO_A 1
| #define HAVE_INET_PTON 1
| #define HAVE_DECL_STRNLEN 1
| #define HAVE_DECL_LE16TOH 1
| #define HAVE_DECL_LE32TOH 1
| #define HAVE_DECL_LE64TOH 1
| #define HAVE_DECL_HTOLE16 1
| #define HAVE_DECL_HTOLE32 1
| #define HAVE_DECL_HTOLE64 1
| #define HAVE_DECL_BE16TOH 1
| #define HAVE_DECL_BE32TOH 1
| #define HAVE_DECL_BE64TOH 1
| #define HAVE_DECL_HTOBE16 1
| #define HAVE_DECL_HTOBE32 1
| #define HAVE_DECL_HTOBE64 1
| #define HAVE_DECL_BSWAP_16 1
| #define HAVE_DECL_BSWAP_32 1
| #define HAVE_DECL_BSWAP_64 1
| #define HAVE_MSG_NOSIGNAL 1
| #define HAVE_VISIBILITY_ATTRIBUTE 1
| #define HAVE_PROTON_CONNECTION_HPP 1
| /* end confdefs.h.  */
| 
| 
| int
| main ()
| {
| return main ();
|   ;
|   return 0;
| }
configure:18955: result: no
configure:18960: WARNING: Proton libraries not found, disabling Proton support
configure:19032: checking for boostlib >= 1.62
configure:19117: g++ -m64 -std=c++11 -c -pipe -O1 -g -I/home/firexware/zcash/zfreshagain/depends/x86_64-unknown-linux-gnu/share/../include/  -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS -I/home/firexware/zcash/zfreshagain/depends/x86_64-unknown-linux-gnu/share/../include conftest.cpp >&5
configure:19117: $? = 0
configure:19119: result: yes
configure:19306: checking whether the Boost::System library is available
configure:19331: g++ -m64 -std=c++11 -c  -I/home/firexware/zcash/zfreshagain/depends/x86_64-unknown-linux-gnu/share/../include/  -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS -I/home/firexware/zcash/zfreshagain/depends/x86_64-unknown-linux-gnu/share/../include conftest.cpp >&5
configure:19331: $? = 0
configure:19346: result: yes
configure:19506: error: Could not find a version of the boost_system library!

[defuse]

Looks like the problem is the depends system build failing silently, not in configure.ac, because commenting out the line proton_packages_$(NO_PROTON) = $(proton_packages) in depends/Makefile makes the --enable-proton build succeed (of course without Proton, per the rules to fallback to not building with Proton in configure.ac when it isn't found).

[defuse]

Ah, the problem is a lib64 directory the Proton build puts into x86_64-unknown-linux-gnu...

$ diff -ur depends/ good-depends/
Only in depends/x86_64-unknown-linux-gnu/include: proton
Only in depends/x86_64-unknown-linux-gnu: lib64
Only in depends/x86_64-unknown-linux-gnu/share: proton-0.17.0
Only in good-depends/x86_64-unknown-linux-gnu: .stamp_518feda2592
Only in depends/x86_64-unknown-linux-gnu: .stamp_c478dfbaa42

Deleting the lib64 directory made configure succeed. Re-creating it (empty) made configure fail again. Moving everything in lib64 over to lib makes configure and the full build (with proton) succeed.

checking for main in -ldb_cxx-6.2... yes
checking proton/connection.hpp usability... yes
checking proton/connection.hpp presence... yes
checking for proton/connection.hpp... yes
checking for main in -lqpid-proton-cpp... yes
checking for boostlib >= 1.62... yes
checking whether the Boost::System library is available... yes
checking for exit in -lboost_system... yes
checking whether the Boost::Filesystem library is available... yes

So I just have to figure out why it's creating lib64 instead of installing into lib or add lib64 to the right search paths.

Adding -DLIB_SUFFIX= in depends/packages/proton.mk fixed it.

[defuse]

#3809 fixed this.