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FindPostgreSQL: Fix for pg_config in multilib configurations. 

Some platforms, Fedora 20 and RHEL 7 in particular, will have multiple
pg_config_${arch}.h files all included by the top level pg_config.h.
This checks all of the available pg_config*.h headers for version
information.
This commit is contained in:
Chuck Atkins 2014-08-31 19:52:04 -04:00 committed by Brad King
parent 5d7ce7a488
commit 741f29cc00
1 changed files with 16 additions and 6 deletions
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22
Modules/FindPostgreSQL.cmake
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@ -145,12 +145,22 @@ find_library( PostgreSQL_LIBRARY
)
get_filename_component(PostgreSQL_LIBRARY_DIR ${PostgreSQL_LIBRARY} PATH)
if (PostgreSQL_INCLUDE_DIR AND EXISTS "${PostgreSQL_INCLUDE_DIR}/pg_config.h")
file(STRINGS "${PostgreSQL_INCLUDE_DIR}/pg_config.h" pgsql_version_str
REGEX "^#define[\t ]+PG_VERSION[\t ]+\".*\"")
string(REGEX REPLACE "^#define[\t ]+PG_VERSION[\t ]+\"([^\"]*)\".*" "\\1"
PostgreSQL_VERSION_STRING "${pgsql_version_str}")
if (PostgreSQL_INCLUDE_DIR)
# Some platforms include multiple pg_config.hs for multi-lib configurations
# This is a temporary workaround. A better solution would be to compile
# a dummy c file and extract the value of the symbol.
file(GLOB _PG_CONFIG_HEADERS "${PostgreSQL_INCLUDE_DIR}/pg_config*.h")
foreach(_PG_CONFIG_HEADER ${_PG_CONFIG_HEADERS})
if(EXISTS "${_PG_CONFIG_HEADER}")
file(STRINGS "${_PG_CONFIG_HEADER}" pgsql_version_str
REGEX "^#define[\t ]+PG_VERSION[\t ]+\".*\"")
if(pgsql_version_str)
string(REGEX REPLACE "^#define[\t ]+PG_VERSION[\t ]+\"([^\"]*)\".*"
"\\1" PostgreSQL_VERSION_STRING "${pgsql_version_str}")
break()
endif()
endif()
endforeach()
unset(pgsql_version_str)
endif()