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cmake: allow looking for optional libraries

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And use this to look for libusb.
If it's there then libdivecomputer likely was linked against it. If it isn't
then we don't need it, either.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2015-04-10 12:08:26 -07:00
parent 25467aa85a
commit 7596db28b5
2 changed files with 7 additions and 6 deletions
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9
CMakeLists.txt
View file

@ -22,10 +22,11 @@ endif()
FIND_PACKAGE(PkgConfig)
INCLUDE(cmake/Modules/pkgconfig_helper.cmake)
pkg_config_library(LIBXML libxml-2.0)
pkg_config_library(LIBSQLITE3 sqlite3)
pkg_config_library(LIBXSLT libxslt)
pkg_config_library(LIBZIP libzip)
pkg_config_library(LIBXML libxml-2.0 REQUIRED)
pkg_config_library(LIBSQLITE3 sqlite3 REQUIRED)
pkg_config_library(LIBXSLT libxslt REQUIRED)
pkg_config_library(LIBZIP libzip REQUIRED)
pkg_config_library(LIBUSB libusb-1.0 QUIET)
# more libraries with special handling in case we build them ourselves

4
cmake/Modules/pkgconfig_helper.cmake
View file

@ -1,5 +1,5 @@
MACRO(pkg_config_library LIBNAME pcfile)
pkg_check_modules(${LIBNAME} REQUIRED ${pcfile})
MACRO(pkg_config_library LIBNAME pcfile option)
pkg_check_modules(${LIBNAME} ${option} ${pcfile})
include_directories(${${LIBNAME}_INCLUDE_DIRS})
link_directories(${${LIBNAME}_LIBRARY_DIRS})
add_definitions(${${LIBNAME}_CFLAGS_OTHER})