If sys-libs/libcxx is present during postgis configure phase, it'll use it instead of libstdc++ as an automagic dependency that isn't expressed in RDEPEND. Comes from configure.ac wagyu step: dnl ============================================================ dnl Check if we can declare the c++ stdlib dnl ============================================================ CC="$WAGYU_CXX" AC_CHECK_LIB(c++, main, [HAVE_CPP=yes], [HAVE_CPP=no]) AC_CHECK_LIB(stdc++, main, [HAVE_STDCPP=yes], [HAVE_STDCPP=no]) if test "x$HAVE_CPP" = "xyes"; then WAGYU_LDFLAGS="-lc++" elif test "x$HAVE_STDCPP" = "xyes"; then WAGYU_LDFLAGS="-lstdc++" else AC_MSG_WARN("Could not find a C++ standard library") WAGYU_LDFLAGS="" fi This automagic needs to be fixed, or an explicit libcxx dep added. !!! existing preserved libs: >>> package: sys-libs/libcxx-10.0.1 * - /usr/lib64/libc++.so.1 * - /usr/lib64/libc++.so.1.0 * used by /usr/lib64/postgresql-11/lib64/postgis-3.so (dev-db/postgis-3.0.0-r1)
(In reply to Mart Raudsepp from comment #0) > If sys-libs/libcxx is present during postgis configure phase, it'll use it > instead of libstdc++ as an automagic dependency that isn't expressed in > RDEPEND. > > Comes from configure.ac wagyu step: > > dnl ============================================================ > dnl Check if we can declare the c++ stdlib > dnl ============================================================ > CC="$WAGYU_CXX" > > AC_CHECK_LIB(c++, main, [HAVE_CPP=yes], [HAVE_CPP=no]) > AC_CHECK_LIB(stdc++, main, [HAVE_STDCPP=yes], [HAVE_STDCPP=no]) > > if test "x$HAVE_CPP" = "xyes"; then > WAGYU_LDFLAGS="-lc++" > elif test "x$HAVE_STDCPP" = "xyes"; then > WAGYU_LDFLAGS="-lstdc++" > else > AC_MSG_WARN("Could not find a C++ standard library") > WAGYU_LDFLAGS="" > fi > > > This automagic needs to be fixed, or an explicit libcxx dep added. > > !!! existing preserved libs: > >>> package: sys-libs/libcxx-10.0.1 > * - /usr/lib64/libc++.so.1 > * - /usr/lib64/libc++.so.1.0 > * used by /usr/lib64/postgresql-11/lib64/postgis-3.so > (dev-db/postgis-3.0.0-r1) If I'm reading the history correctly, this was introduced with 3.0. We just need a c++11 compiler to get the Wagyu benefits. So, any currently supported GCC is sufficient. The best fix here is to strip out the stdc++ portions, and leave the c++ portions intact.
(In reply to Aaron W. Swenson from comment #1) > The best fix here is to strip out the stdc++ portions, and leave the c++ > portions intact. I meant that the other way around. Strip the c++ portions and leave the stdc++ bits.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=0fa80295af29bf426677f4f7fbdb7dc1f0fc1f4e commit 0fa80295af29bf426677f4f7fbdb7dc1f0fc1f4e Author: Aaron W. Swenson <titanofold@gentoo.org> AuthorDate: 2020-12-24 03:42:36 +0000 Commit: Aaron W. Swenson <titanofold@gentoo.org> CommitDate: 2020-12-24 03:42:36 +0000 dev-db/postgis: Version Bump and Fix Bump to 3.1.0. No longer auto-magically depend on libcxx, and tries more names for a compatible CPP interface. Bug: https://bugs.gentoo.org/731104 Bug: https://bugs.gentoo.org/747544 Signed-off-by: Aaron W. Swenson <titanofold@gentoo.org> dev-db/postgis/Manifest | 1 + .../files/postgis-3.0.3-detect-only-stdc.patch | 17 +++ .../files/postgis-3.0.3-try-other-cpp-names.patch | 12 ++ dev-db/postgis/postgis-3.0.3-r2.ebuild | 139 ++++++++++++++++++++ dev-db/postgis/postgis-3.1.0.ebuild | 140 +++++++++++++++++++++ 5 files changed, 309 insertions(+)
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b1114c7e9c6911a99f1b99c48699e53f465ac15c commit b1114c7e9c6911a99f1b99c48699e53f465ac15c Author: Aaron W. Swenson <titanofold@gentoo.org> AuthorDate: 2021-02-23 15:28:24 +0000 Commit: Aaron W. Swenson <titanofold@gentoo.org> CommitDate: 2021-02-23 15:28:24 +0000 dev-db/postgis: Cleanup Closes: https://bugs.gentoo.org/731104 Closes: https://bugs.gentoo.org/747544 Signed-off-by: Aaron W. Swenson <titanofold@gentoo.org> dev-db/postgis/Manifest | 7 -- dev-db/postgis/metadata.xml | 3 - dev-db/postgis/postgis-2.5.3-r1.ebuild | 135 ------------------------- dev-db/postgis/postgis-2.5.4.ebuild | 137 ------------------------- dev-db/postgis/postgis-2.5.5.ebuild | 137 ------------------------- dev-db/postgis/postgis-3.0.0-r1.ebuild | 135 ------------------------- dev-db/postgis/postgis-3.0.1.ebuild | 135 ------------------------- dev-db/postgis/postgis-3.0.2.ebuild | 135 ------------------------- dev-db/postgis/postgis-3.0.3-r1.ebuild | 138 -------------------------- dev-db/postgis/postgis-3.1.0_alpha3-r1.ebuild | 138 -------------------------- 10 files changed, 1100 deletions(-)
