build/pkgconfig.mk

   1 PKG_CONFIG = pkg-config
   2
   3 ifeq ($(TARGET_IS_DARWIN),y)
   4   PKG_CONFIG += --static
   5 endif
   6
   7 ifeq ($(HOST_IS_WIN32)$(HAVE_WIN32)$(HAVE_CE)$(call string_equals,WINE,$(TARGET)),nynn)
   8   PKG_CONFIG := PKG_CONFIG_LIBDIR=/usr/local/i686-w64-mingw32/lib/pkgconfig $(PKG_CONFIG)
   9 endif
  10
  11 # Generates a pkg-config lookup for a library.
  12 #
  13 # Example: $(eval $(call CURL,libcurl >= 2.21))
  14 #
  15 # Arguments: PREFIX, SPEC
  16 #
  17 # PREFIX is a prefix for variables that will hold the results.  This
  18 # function will append "_CPPFLAGS" (pkg-config --cflags) and "_LDLIBS"
  19 # (pkg-config --libs).
  20 #
  21 # SPEC is the pkg-config package specification.
  22 #
  23 define pkg-config-library
  24
  25 $(1)_CPPFLAGS := $$(shell $$(PKG_CONFIG) --cflags $(2))
  26 $(1)_LDLIBS := $$(shell $$(PKG_CONFIG) --libs $(2))
  27
  28 ifeq ($$($(1)_CPPFLAGS)$$($(1)_LDLIBS),)
  29 $$(error library not found: $(2))
  30 endif
  31
  32 endef