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Diffstat (limited to '')
| -rw-r--r-- | CMakeLists.txt | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..5385049 --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,151 @@ +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( + $<$<NOT:$<BOOL:${HAVE__PATH_BSHELL}>>:_PATH_BSHELL="/bin/sh"> + $<$<NOT:$<BOOL:${HAVE__PATH_DEVNULL}>>:_PATH_DEVNULL="/dev/null"> + $<$<NOT:$<BOOL:${HAVE__PATH_TTY}>>:_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 + $<IF:$<EQUAL:${SIZEOF_INTMAX_T},${SIZEOF_LONG_LONG_INT}>,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() +else() + add_compile_definitions(SMALL) +endif() + +option(WITH_LINENO "Enable LINENO support" ON) + +configure_file(config.h.in config.h) + +add_subdirectory(src) |