cmake_minimum_required(VERSION 3.10) project(dash VERSION 0.5.11.5 LANGUAGES C) include(CheckCSourceCompiles) include(CheckIncludeFile) include(CheckLibraryExists) include(CheckStructHasMember) include(CheckSymbolExists) include(CheckTypeSize) include(GNUInstallDirs) check_c_source_compiles([[ void t() {} void a() __attribute__((__alias__("t"))); int main() { a(); return 0; } ]] HAVE_ALIAS_ATTRIBUTE) option(ENABLE_FNMATCH "Use fnmatch(3) from libc") option(ENABLE_GLOB "Use glob(3) from libc") # Checks for header files. check_include_file("alloca.h" HAVE_ALLOCA_H) check_include_file("paths.h" HAVE_PATHS_H) # Check for declarations check_symbol_exists(_PATH_BSHELL "paths.h" HAVE__PATH_BSHELL) check_symbol_exists(_PATH_DEVNULL "paths.h" HAVE__PATH_DEVNULL) check_symbol_exists(_PATH_TTY "paths.h" HAVE__PATH_TTY) add_compile_definitions( $<$>:_PATH_BSHELL="/bin/sh"> $<$>:_PATH_DEVNULL="/dev/null"> $<$>:_PATH_TTY="/dev/tty"> ) # Some systems lack isblank check_symbol_exists(isblank "ctype.h" HAVE_DECL_ISBLANK) # Check for sizes of types check_type_size("intmax_t" SIZEOF_INTMAX_T) check_type_size("long long int" SIZEOF_LONG_LONG_INT) # Select a fallback format string for intmax_t in case we don't find PRIdMAX set( INTMAX_FSTR $,lld,jd> ) # Check for PRIdMAX and define it to a fallback if not found check_symbol_exists(PRIdMAX "inttypes.h" HAVE_PRIdMAX) if(NOT HAVE_PRIdMAX) add_compile_definitions(PRIdMAX="${INTMAX_FSTR}") endif() # Checks for library functions. check_symbol_exists(bsearch "stdlib.h" HAVE_BSEARCH) check_symbol_exists(faccessat "unistd.h" HAVE_FACCESSAT) check_symbol_exists(getpwnam "pwd.h" HAVE_GETPWNAM) check_symbol_exists(getrlimit "sys/resource.h" HAVE_GETRLIMIT) check_symbol_exists(isalpha "ctype.h" HAVE_ISALPHA) check_symbol_exists(killpg "signal.h" HAVE_KILLPG) check_symbol_exists(memcpy "string.h" HAVE_MEMCPY) check_symbol_exists(sigsetmask "signal.h" HAVE_SIGSETMASK) check_symbol_exists(stpcpy "string.h" HAVE_STPCPY) check_symbol_exists(strchrnul "string.h" HAVE_STRCHRNUL) check_symbol_exists(strsignal "string.h" HAVE_STRSIGNAL) check_symbol_exists(strtod "stdlib.h" HAVE_STRTOD) check_symbol_exists(strtoimax "inttypes.h" HAVE_STRTOIMAX) check_symbol_exists(strtoumax "inttypes.h" HAVE_STRTOUMAX) check_symbol_exists(sysconf "unistd.h" HAVE_SYSCONF) # Check whether it's worth working around FreeBSD PR kern/125009. # The traditional behavior of access/faccessat is crazy, but # POSIX.1-2008 explicitly allows those functions to misbehave. # # Unaffected kernels: # # - all versions of Linux # - NetBSD sys/kern/vfs_subr.c 1.64, 1997-04-23 # - FreeBSD 9 (r212002), 2010-09-10 # - OpenBSD sys/kern/vfs_subr.c 1.166, 2008-06-09 # # Also worked around in Debian's libc0.1 2.13-19 when using # kFreeBSD 8. option( ENABLE_TEST_WORKAROUND "Guard against faccessat(2) that tells root all files are executable" AUTO ) if(ENABLE_TEST_WORKAROUND STREQUAL "AUTO" AND HAVE_FACCESSAT) if( CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR CMAKE_SYSTEM_NAME STREQUAL "GNU/kFreeBSD" ) set(ENABLE_TEST_WORKAROUND ON) endif() set( HAVE_TRADITIONAL_FACCESSAT ON CACHE BOOL "Define if your faccessat tells root all files are executable" ) endif() if(ENABLE_FNMATCH) check_symbol_exists(fnmatch "fnmatch.h" HAVE_FNMATCH) endif() if(HAVE_FNMATCH AND ENABLE_GLOB) check_symbol_exists(glob "glob.h" HAVE_GLOB) endif() # Check for klibc signal. check_symbol_exists(bsd_signal "signal.h" HAVE_BSD_SIGNAL) if(HAVE_BSD_SIGNAL) add_compile_definitions(signal=bsd_signal) endif() # Check for stat64 (dietlibc/klibc). check_symbol_exists(stat64 "sys/stat.h" HAVE_STAT64) if(NOT HAVE_STAT64) add_compile_definitions(fstat64=fstat lstat64=lstat stat64=stat) endif() # OS X apparently has stat64 but not open64. check_symbol_exists(open64 "fcntl.h" HAVE_OPEN64) if(NOT HAVE_OPEN64) add_compile_definitions(open64=open readdir64=readdir dirent64=dirent) endif() # Check if struct stat has st_mtim. check_struct_has_member( "struct stat" "st_mtim.tv_sec" "sys/stat.h" HAVE_ST_MTIM ) option(WITH_LIBEDIT "Compile with libedit support") if(WITH_LIBEDIT) check_include_file("histedit.h" HAVE_HISTEDIT_H) check_library_exists(edit history_init /usr/lib LIBEDIT_FOUND) if(HAVE_HISTEDIT_H AND LIBEDIT_FOUND) link_libraries(edit) else() message(SEND_ERROR "Can't find libedit.") endif() set(CMAKE_REQUIRED_LIBRARIES edit) check_symbol_exists( _el_fn_sh_complete "histedit.h" HAVE__EL_FN_SH_COMPLETE ) else() add_compile_definitions(SMALL) endif() option(WITH_LINENO "Enable LINENO support" ON) configure_file(config.h.in config.h) add_subdirectory(src)