Before:
libdir=/usr//usr/lib64
includedir=/usr//usr/include
After:
libdir=/usr/lib64
includedir=/usr/include
(note the duplication of /usr in the before case)
Because of the fact that pkg-config is pants-on-head retarded and that
the Linux linker *requires* a static library to come before all its
dynamic dependencies in the link path, calling `pkg-config --libs
--static` was generating the wrong flags for linking.
Before this patch:
-Wl,-Bsymbolic-functions -Wl,-z,relro -L/usr/local/lib -lcurl -lssh2
-lrt -lgit2 -lssl -lcrypto -ldl -lz
After this patch:
-Wl,-Bsymbolic-functions -Wl,-z,relro -L/usr/local/lib -lgit2 -lcurl
-lssh2 -lrt -lssl -lcrypto -ldl -lz
By setting the "Libs" line before all other rules, we make sure that
`-lgit2` is the first library in the link path and that it gets its
symbols resolved with the libraries coming after it.
This fix (ab)uses an implementation detail in `pkg-config` (namely, that
flags are output as they are found on the file), but this detail seems
to be stable between releases and always gives a stable output.
When linking statically, the including project needs to know what the
current library build depends on so they can link to it. Store this
information in the pkg-config file.
While here, remove claims that users need to link to zlib or libcrypto.
Rename INSTALL_INC and INSTALL_BIN to INCLUDE_INSTALL_DIR and
BIN_INSTALL_DIR, which are more commonly used. This is also
consistent with the variable for the library path which is
already LIB_INSTALL_DIR.
b3237ac3 changed CMakeList.txt to use the more standard LIB_INSTALL_DIR
variable instead of INSTALL_LIB, but forgot to change libgit2.pc.in etc.
accordingly.
We now have proper sonames in Mac OS X and Linux, proper versioning on
the pkg-config file and proper DLL naming in Windows.
The version of the library is defined exclusively in 'src/git2.h'; the build scripts
read it from there automatically.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
libz and libcrypto dependencies were added recently while libgit2.pc
did not get updated.
Signed-off-by: Steve Frécinaux <code@istique.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The libgit2.pc is generated on make install and installed, to allow
using the lib through the pkg-config helper.
Signed-off-by: Steve Frécinaux <code@istique.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
