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dnl Checks for required headers and functions
dnl
dnl Version: 20230218
dnl Function to detect if ctime_r or ctime is available
dnl Also checks how to use ctime_r
AC_DEFUN([AX_SMRAWTOOLS_CHECK_FUNC_CTIME],
[AC_CHECK_FUNCS([ctime_r])
AS_IF(
[test "x$ac_cv_func_ctime_r" = xyes],
[AC_MSG_CHECKING(
[how to use ctime_r])
AC_LANG_PUSH(C)
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <time.h>]],
[[ctime_r( NULL, NULL, 0 )]] )],
[AC_MSG_RESULT(
[with additional size argument])
ac_cv_cv_ctime_r_size=yes],
[ac_cv_cv_ctime_r_size=no])
AS_IF(
[test "x$ac_cv_cv_ctime_r_size" = xno],
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <time.h>]],
[[ctime_r( NULL, NULL )]] )],
[AC_MSG_RESULT(
[with two arguments])
ac_cv_cv_ctime_r_posix=yes],
[ac_cv_cv_ctime_r_posix=no])
])
AS_IF(
[test "x$ac_cv_cv_ctime_r_posix" = xno],
[CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <time.h>]],
[[ctime_r( NULL, NULL )]] )],
[AC_MSG_RESULT(
[with two arguments and definition _POSIX_PTHREAD_SEMANTICS])
ac_cv_cv_ctime_r_posix=yes],
[ac_cv_cv_ctime_r_posix=no])
])
AC_LANG_POP(C)
AS_IF(
[test "x$ac_cv_cv_ctime_r_size" = xno && test "x$ac_cv_cv_ctime_r_posix" = xno],
[AC_MSG_WARN(
[unknown])
ac_cv_func_ctime_r=no])
AS_IF(
[test "x$ac_cv_func_ctime_r" = xyes],
[AC_DEFINE(
[HAVE_CTIME_R],
[1],
[Define to 1 if you have the ctime_r function.])
])
AS_IF(
[test "x$ac_cv_cv_ctime_r_size" = xyes],
[AC_DEFINE(
[HAVE_CTIME_R_SIZE],
[1],
[Define to 1 if you have the ctime_r function with a third size argument.])
])
])
AS_IF(
[test "x$ac_cv_func_ctime_r" = xno],
[AC_CHECK_FUNCS([ctime])
AS_IF(
[test "x$ac_cv_func_ctime" = xno],
[AC_MSG_FAILURE(
[Missing function: ctime_r and ctime],
[1])
])
])
])
dnl Function to detect if libsmraw dependencies are available
AC_DEFUN([AX_LIBSMRAW_CHECK_LOCAL],
[dnl Check for internationalization functions in libsmraw/libsmraw_i18n.c
AC_CHECK_FUNCS([bindtextdomain])
])
dnl Function to detect if smrawtools dependencies are available
AC_DEFUN([AX_SMRAWTOOLS_CHECK_LOCAL],
[dnl Headers used in smrawtools
AC_CHECK_HEADERS([signal.h sys/signal.h unistd.h])
dnl Headers included in smrawtools/smrawtools_glob.h
AC_CHECK_HEADERS([errno.h glob.h])
AS_IF(
[test "x$ac_cv_header_glob_h" = xno],
[AC_CHECK_HEADERS([io.h])
])
dnl Functions used in smrawtools
AC_CHECK_FUNCS([close getopt setvbuf])
AS_IF(
[test "x$ac_cv_func_close" != xyes],
[AC_MSG_FAILURE(
[Missing function: close],
[1])
])
dnl Headers included in smrawtools/log_handle.c
AC_CHECK_HEADERS([stdarg.h varargs.h])
AS_IF(
[test "x$ac_cv_header_stdarg_h" != xyes && test "x$ac_cv_header_varargs_h" != xyes],
[AC_MSG_FAILURE(
[Missing headers: stdarg.h and varargs.h],
[1])
])
dnl Functions used in smrawtools/smrawmount.c
AS_IF(
[test "x$ac_cv_enable_winapi" = xno],
[AC_CHECK_HEADERS([sys/time.h])
AC_CHECK_FUNCS([clock_gettime getegid geteuid time])
])
dnl Date and time functions used in smrawtools/process_status.c
AX_SMRAWTOOLS_CHECK_FUNC_CTIME
AC_CHECK_FUNCS([gmtime gmtime_r])
AS_IF(
[test "x$ac_cv_func_gmtime" != xyes && test "x$ac_cv_func_gmtime_r" != xyes],
[AC_MSG_FAILURE(
[Missing functions: gmtime_r and gmtime],
[1])
])
AS_IF(
[test "x$ac_cv_func_time" != xyes],
[AC_MSG_FAILURE(
[Missing function: time],
[1])
])
])
dnl Function to check if DLL support is needed
AC_DEFUN([AX_LIBSMRAW_CHECK_DLL_SUPPORT],
[AS_IF(
[test "x$enable_shared" = xyes && test "x$ac_cv_enable_static_executables" = xno],
[AS_CASE(
[$host],
[*cygwin* | *mingw* | *msys*],
[AC_DEFINE(
[HAVE_DLLMAIN],
[1],
[Define to 1 to enable the DllMain function.])
AC_SUBST(
[HAVE_DLLMAIN],
[1])
AC_SUBST(
[LIBSMRAW_DLL_EXPORT],
["-DLIBSMRAW_DLL_EXPORT"])
AC_SUBST(
[LIBSMRAW_DLL_IMPORT],
["-DLIBSMRAW_DLL_IMPORT"])
])
])
])
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