here comes meson

a new shiny buildtool that currently completes in the total of ~ 4 min..
1 min. conf time
2:30 min. build time
Where autotools takes:
1:50 min. conf time
3:40 min. build time.

meson was taken because it went quite good for enlightenment, and is a traction gaining system that is also used by other mayor projects. Additionally, the DSL that is defined my meson makes the configuration of the builds a lot easier to read.

Further informations can be gathered from the README.meson

Right now, bindings & windows support are missing.

It is highly recommented to use meson 0.48 due to optimizations in meson
that reduced the time the meson call would need.

Co-authored-by: Mike Blumenkrantz <zmike@samsung.com>

Differential Revision: https://phab.enlightenment.org/D7012
Depends on D7011

1 files changed, 177 insertions, 0 deletions

diff --git a/header_checks/meson.build b/header_checks/meson.build
new file mode 100644
index 0000000000..e54e17943c
--- /dev/null
+++ b/header_checks/meson.build
@@ -0,0 +1,177 @@
+header_checks = [
+  'alloca.h',
+  'asm/hwcap.h',
+  'bsd/string.h',
+  'dirent.h',
+  'execinfo.h',
+  'mcheck.h',
+  'netinet/in.h',
+  'netinet/ssl.h',
+  'netinet/tcp.h',
+  'netinet/udp.h',
+  'net/if.h',
+  'stdlib.h',
+  'mman.h',
+  'sys/auxv.h',
+  'sys/inotify.h',
+  'sys/ioctl.h',
+  'sys/mman.h',
+  'sys/types.h',
+  'sys/socket.h',
+  'sys/filio.h',
+  'arpa/inet.h',
+  'sys/epoll.h',
+  'sys/un.h',
+  'sys/wait.h',
+  'sys/resource.h',
+  'sys/times.h',
+  'dirent.h',
+  'longinfo.h',
+  'exotic.h',
+  'ieeefp.h',
+  'node/uv.h',
+  'sys/timerfd.h',
+  'features.h',
+  'langinfo.h',
+  'locale.h',
+  'uv.h',
+  'ws2tcpip.h'
+]
+
+function_checks = [
+# function name | headers that are needed | libraries to include | Defines that are needed
+  ['alloca', ['alloca.h']],
+  ['backtrace', ['execinfo.h']],
+  ['backtrace_symbols', ['execinfo.h']],
+  ['clock_gettime', ['time.h']],
+  ['dirfd', ['dirent.h sys/types.h']],
+  ['fchmod', ['sys/stat.h']],
+  ['fcntl', ['fcntl.h']],
+  ['fork', ['unistd.h']],
+  ['fpathconf', ['unistd.h']],
+  ['geteuid', ['unistd.h']],
+  ['getpagesize', ['unistd.h']],
+  ['getpwent', ['sys/types.h', 'pwd.h']],
+  ['getuid', ['unistd.h']],
+  ['getxattr', ['sys/types.h', 'sys/xattr.h']],
+  ['iconv', ['iconv.h']],
+  ['listxattr', ['sys/types.h', 'sys/xattr.h']],
+  ['mallinfo', ['malloc.h']],
+  ['malloc_info', ['malloc.h']],
+  ['malloc_usable_size', ['malloc.h']],
+  ['mkdirat', ['sys/stat.h']],
+  ['mmap', ['sys/mman.h']],
+  ['mtrace', ['mcheck.h']],
+  ['prctl', ['sys/prctl.h']],
+  ['realpath', ['stdlib.h']],
+  ['setxattr', ['sys/types.h', 'sys/xattr.h']],
+  ['siglongjmp', ['setjmp.h']],
+  ['strerror_r', ['string.h']],
+  ['gettimeofday', ['sys/time.h']],
+  ['execvp', ['unistd.h']],
+  ['pause', ['unistd.h']],
+  ['isfinite', ['math.h']],
+#FIXME strlcpy is detected by meson but drops at compilation time
+#  ['strlcpy', ['string.h']],
+  ['siginfo_t', ['signal.h']],
+  ['strerror_r', ['string.h']],
+  ['pthread_getcpuclockid', ['pthread.h', 'time.h']],
+  ['timerfd_create', ['sys/timerfd.h']],
+  ['kevent', ['sys/types.h', 'sys/event.h', 'sys/time.h']],
+#from here on we specify the dependencies
+  ['dlopen', ['dlfcn.h'],                               ['dl']],
+  ['dlsym', ['dlfcn.h'],                                ['dl']],
+  ['lround', ['math.h'],                                ['m']],
+  ['shm_open', ['sys/mman.h', 'sys/stat.h', 'fcntl.h'], ['rt']],
+#from here on we specify arguments
+  ['splice', ['fcntl.h'],                               [],      '-D_GNU_SOURCE=1'],
+  ['sched_getcpu', ['sched.h'],                         [],      '-D_GNU_SOURCE=1'],
+  ['dladdr', ['dlfcn.h'],                               ['dl'],  '-D_GNU_SOURCE=1']
+]
+
+strerror_r_char_p = cc.compiles('''#define _GNU_SOURCE
+                  #include <string.h>
+                  int func (void)
+                    {
+                       char error_string[256];
+                       char *ptr = strerror_r (-2, error_string, 256);
+                       char c = *strerror_r (-2, error_string, 256);
+                       return c != 0 && ptr != (void*) 0L;
+                    }
+                 ''',
+                 name : 'strerror_r() returns char *')
+
+if strerror_r_char_p
+  config_h.set('STRERROR_R_CHAR_P', '1')
+endif
+
+#for later use, a bunch of librarie findings
+m = cc.find_library('m')
+#just keep this here as required false, if it is not inplace the library rt will just be linked as NOP
+dl = cc.find_library('dl', required: false)
+rt = cc.find_library('rt', required: false)
+
+thread_dep = dependency('threads')
+
+#check for the headers
+foreach header : header_checks
+  if cc.has_header(header)
+    config_h.set10('HAVE_'+header.underscorify().to_upper(), true)
+  endif
+endforeach
+
+foreach function : function_checks
+  function_name = function[0]
+  headers_to_search = function[1]
+  dependencies = []
+  args = []
+
+  # if there is a library, make sure they exist
+  if function.length() > 2
+    foreach library : function[2]
+      lib = cc.find_library(library, required : false)
+      if lib.found() == true
+        dependencies += lib
+      endif
+    endforeach
+  endif
+
+  #check if there are args
+  if function.length() > 3
+    args = function[3]
+  endif
+
+  # Only check the header if the dependencies are ready
+  foreach header : headers_to_search
+    if cc.has_header_symbol(header, function_name,
+        dependencies : dependencies,
+        args : args)
+      config_h.set10('HAVE_'+function_name.to_upper(), true)
+    endif
+  endforeach
+endforeach
+
+# The next checks are manually for now due to the fact that some names are not within the default pattern
+if (cc.has_header_symbol('sys/stat.h', 'fstatat'))
+  config_h.set10('HAVE_ATFILE_SOURCE', true)
+endif
+
+if (cc.has_header('sys/mman.h'))
+  config_h.set10('HAVE_MMAN_H', true)
+endif
+
+config_h.set('VMAJ', version_major)
+config_h.set('VMIN', version_minor)
+config_h.set('VMIC', version_micro)
+config_h.set('VREV', '0')
+
+#jpeg detection ... life is a bit more complex there 
+
+jpeg = dependency('libjpeg', required: false)
+if jpeg.found() == false
+  jpeg = cc.find_library('jpeg')
+endif
+
+if config_h.has('HAVE_KEVENT')
+  config_h.set('HAVE_NOTIFY_KEVENT', '1')
+endif
\ No newline at end of file