simh-testsetgenerator/cmake/FindPCRE2.cmake
B. Scott Michel 8b14bb69be
CMake build infrastructure II (#53)
* CMake build infrastructure

The squashed commit that builds and packages releases for the SIMH
simulator suite with CMake, version 3.14 or newer.

See README-CMake.md for documentation.
2023-05-17 20:18:42 -04:00

97 lines
2.9 KiB
CMake

# Locate the PCRE library
#
# This module defines:
#
# ::
#
# PCRE2_LIBRARIES, the name of the pcre2 library to link against
# PCRE2_INCLUDE_DIRS, where to find the pcre2 headers
# PCRE2_FOUND, if false, do not try to compile or link with pcre2
# PCRE2_VERSION_STRING - human-readable string containing the version of pcre or pcre2
#
# Tweaks:
# 1. PCRE_PATH: A list of directories in which to search
# 2. PCRE_DIR: An environment variable to the directory where you've unpacked or installed PCRE.
#
# "scooter me fecit"
find_path(PCRE2_INCLUDE_DIR pcre2.h
HINTS
ENV PCRE_DIR
# path suffixes to search inside ENV{PCRE_DIR}
PATHS ${PCRE_PATH}
PATH_SUFFIXES
include/pcre
include/PCRE
include
)
if (CMAKE_SIZEOF_VOID_P EQUAL 8)
set(LIB_PATH_SUFFIXES lib64 x64 amd64 x86_64-linux-gnu aarch64-linux-gnu lib)
else ()
set(LIB_PATH_SUFFIXES x86)
endif ()
find_library(PCRE2_LIBRARY_RELEASE
NAMES
pcre2-8
pcre2-8-static
HINTS
ENV PCRE_DIR
PATH_SUFFIXES
${LIB_PATH_SUFFIXES}
PATHS
${PCRE_PATH}
)
find_library(PCRE2_LIBRARY_DEBUG
NAMES
pcre2-8d
pcre2-8-staticd
HINTS
ENV PCRE_DIR
PATH_SUFFIXES
${LIB_PATH_SUFFIXES}
PATHS
${PCRE_PATH}
)
if (PCRE2_INCLUDE_DIR)
if (EXISTS "${PCRE2_INCLUDE_DIR}/pcre2.h")
file(STRINGS "${PCRE2_INCLUDE_DIR}/pcre2.h" PCRE2_VERSION_MAJOR_LINE REGEX "^#define[ \t]+PCRE2_MAJOR[ \t]+[0-9]+$")
file(STRINGS "${PCRE2_INCLUDE_DIR}/pcre2.h" PCRE2_VERSION_MINOR_LINE REGEX "^#define[ \t]+PCRE2_MINOR[ \t]+[0-9]+$")
endif ()
string(REGEX REPLACE "^#define[ \t]+PCRE2?_MAJOR[ \t]+([0-9]+)$" "\\1" PCRE2_VERSION_MAJOR "${PCRE2_VERSION_MAJOR_LINE}")
string(REGEX REPLACE "^#define[ \t]+PCRE2?_MINOR[ \t]+([0-9]+)$" "\\1" PCRE2_VERSION_MINOR "${PCRE2_VERSION_MINOR_LINE}")
set(PCRE2_VERSION_STRING "${PCRE2_VERSION_MAJOR}.${PCRE2_VERSION_MINOR}")
unset(PCRE2_VERSION_MAJOR_LINE)
unset(PCRE2_VERSION_MINOR_LINE)
unset(PCRE2_VERSION_MAJOR)
unset(PCRE2_VERSION_MINOR)
endif ()
include(SelectLibraryConfigurations)
SELECT_LIBRARY_CONFIGURATIONS(PCRE2)
## message("== PCRE_INCLUDE_DIR ${PCRE_INCLUDE_DIR}")
## message("== PCRE2_LIBRARY ${PCRE2_LIBRARY}")
## message("== PCRE2_LIBRARIES ${PCRE2_LIBRARIES}")
## message("== PCRE2_LIBRARY_DEBUG ${PCRE2_LIBRARY_DEBUG}")
## message("== PCRE2_LIBRARY_RELEASE ${PCRE2_LIBRARY_RELEASE}")
set(PCRE2_INCLUDE_DIRS ${PCRE2_INCLUDE_DIR})
set(PCRE2_LIBRARIES ${PCRE2_LIBRARY})
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(
PCRE2
REQUIRED_VARS
PCRE2_LIBRARY
PCRE2_INCLUDE_DIR
VERSION_VAR
PCRE2_VERSION_STRING
)