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# -*- cmake -*-
SET(DEBUG_PKG_CONFIG "YES")
# Don't change this if manually set by user.
IF("$ENV{PKG_CONFIG_LIBDIR}" STREQUAL "")
# Guess at architecture-specific system library paths.
if (ADDRESS_SIZE EQUAL 32)
SET(PKG_CONFIG_NO_MULTI_GUESS /usr/lib32 /usr/lib)
SET(PKG_CONFIG_NO_MULTI_LOCAL_GUESS /usr/local/lib32 /usr/local/lib)
SET(PKG_CONFIG_MULTI_GUESS /usr/lib/i386-linux-gnu)
SET(PKG_CONFIG_MULTI_LOCAL_GUESS /usr/local/lib/i386-linux-gnu)
else (ADDRESS_SIZE EQUAL 32)
SET(PKG_CONFIG_NO_MULTI_GUESS /usr/lib64 /usr/lib)
SET(PKG_CONFIG_NO_MULTI_LOCAL_GUESS /usr/local/lib64 /usr/local/lib)
SET(PKG_CONFIG_MULTI_GUESS /usr/lib/x86_64-linux-gnu)
SET(PKG_CONFIG_MULTI_LOCAL_GUESS /usr/local/lib/x86_64-linux-gnu)
endif (ADDRESS_SIZE EQUAL 32)
# Use DPKG architecture, if available.
IF (${DPKG_ARCH})
SET(PKG_CONFIG_MULTI_GUESS /usr/lib/${DPKG_ARCH})
SET(PKG_CONFIG_MULTI_LOCAL_GUESS /usrlocal/lib/${DPKG_ARCH})
ENDIF (${DPKG_ARCH})
# Explicitly include anything listed in PKG_CONFIG_PATH
string(REPLACE ":" ";" PKG_CONFIG_PATH_LIST "$ENV{PKG_CONFIG_PATH}")
FOREACH(PKG_CONFIG_DIR ${PKG_CONFIG_PATH_LIST})
SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_DIR}/pkgconfig")
ENDFOREACH(PKG_CONFIG_DIR)
# Look for valid pkgconfig directories.
FIND_PATH(PKG_CONFIG_ENV pkgconfig ENV LD_LIBRARY_PATH)
FIND_PATH(PKG_CONFIG_MULTI pkgconfig HINT ${PKG_CONFIG_MULTI_GUESS})
FIND_PATH(PKG_CONFIG_MULTI_LOCAL pkgconfig HINT ${PKG_CONFIG_MULTI_LOCAL_GUESS})
FIND_PATH(PKG_CONFIG_NO_MULTI pkgconfig HINT ${PKG_CONFIG_NO_MULTI_GUESS})
FIND_PATH(PKG_CONFIG_NO_MULTI_LOCAL pkgconfig HINT ${PKG_CONFIG_NO_MULTI_LOCAL_GUESS})
# Add anything we found to our list.
IF(NOT PKG_CONFIG_ENV STREQUAL PKG_CONFIG_ENV-NOTFOUND)
SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_ENV}/pkgconfig")
ENDIF(NOT PKG_CONFIG_ENV STREQUAL PKG_CONFIG_ENV-NOTFOUND)
IF(NOT PKG_CONFIG_MULTI STREQUAL PKG_CONFIG_MULTI-NOTFOUND)
SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_MULTI}/pkgconfig")
ENDIF(NOT PKG_CONFIG_MULTI STREQUAL PKG_CONFIG_MULTI-NOTFOUND)
IF(NOT PKG_CONFIG_MULTI_LOCAL STREQUAL PKG_CONFIG_MULTI_LOCAL-NOTFOUND)
SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_MULTI_LOCAL}/pkgconfig")
ENDIF(NOT PKG_CONFIG_MULTI_LOCAL STREQUAL PKG_CONFIG_MULTI_LOCAL-NOTFOUND)
IF(NOT PKG_CONFIG_NO_MULTI STREQUAL PKG_CONFIG_NO_MULTI-NOTFOUND)
SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_NO_MULTI}/pkgconfig")
ENDIF(NOT PKG_CONFIG_NO_MULTI STREQUAL PKG_CONFIG_NO_MULTI-NOTFOUND)
IF(NOT PKG_CONFIG_NO_MULTI_LOCAL STREQUAL PKG_CONFIG_NO_MULTI_LOCAL-NOTFOUND)
SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:${PKG_CONFIG_NO_MULTI_LOCAL}/pkgconfig")
ENDIF(NOT PKG_CONFIG_NO_MULTI_LOCAL STREQUAL PKG_CONFIG_NO_MULTI_LOCAL-NOTFOUND)
# Also add some non-architecture specific package locations.
SET(VALID_PKG_LIBDIRS "${VALID_PKG_LIBDIRS}:/usr/share/pkgconfig:/usr/local/share/pkgconfig")
# Remove first unwanted ':'
string(SUBSTRING ${VALID_PKG_LIBDIRS} 1 -1 VALID_PKG_LIBDIRS)
# Set PKG_CONFIG_LIBDIR environment.
SET(ENV{PKG_CONFIG_LIBDIR} ${VALID_PKG_LIBDIRS})
ENDIF("$ENV{PKG_CONFIG_LIBDIR}" STREQUAL "")
IF(DEBUG_PKG_CONFIG)
MESSAGE(STATUS "Using PKG_CONFIG_LIBDIR=$ENV{PKG_CONFIG_LIBDIR}")
ENDIF(DEBUG_PKG_CONFIG)
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