diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/curl-functions.m4 | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/m4/curl-functions.m4 b/m4/curl-functions.m4 index f59963983..162e1f6ac 100644 --- a/m4/curl-functions.m4 +++ b/m4/curl-functions.m4 @@ -117,6 +117,112 @@ curl_includes_time="\ ]) +dnl CURL_INCLUDES_UNISTD +dnl ------------------------------------------------- +dnl Set up variable with list of headers that must be +dnl included when unistd.h is to be included. + +AC_DEFUN([CURL_INCLUDES_UNISTD], [ +curl_includes_unistd="\ +/* includes start */ +#ifdef HAVE_SYS_TYPES_H +# include <sys/types.h> +#endif +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif +/* includes end */" + AC_CHECK_HEADERS( + sys/types.h unistd.h, + [], [], [$curl_includes_unistd]) +]) + + +dnl CURL_CHECK_FUNC_FTRUNCATE +dnl ------------------------------------------------- +dnl Verify if ftruncate is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable curl_disallow_ftruncate, then +dnl HAVE_FTRUNCATE will be defined. + +AC_DEFUN([CURL_CHECK_FUNC_FTRUNCATE], [ + AC_REQUIRE([CURL_INCLUDES_UNISTD])dnl + # + tst_links_ftruncate="unknown" + tst_proto_ftruncate="unknown" + tst_compi_ftruncate="unknown" + tst_allow_ftruncate="unknown" + # + AC_MSG_CHECKING([if ftruncate can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([ftruncate]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_ftruncate="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_ftruncate="no" + ]) + # + if test "$tst_links_ftruncate" = "yes"; then + AC_MSG_CHECKING([if ftruncate is prototyped]) + AC_EGREP_CPP([ftruncate],[ + $curl_includes_unistd + ],[ + AC_MSG_RESULT([yes]) + tst_proto_ftruncate="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_ftruncate="no" + ]) + fi + # + if test "$tst_proto_ftruncate" = "yes"; then + AC_MSG_CHECKING([if ftruncate is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $curl_includes_unistd + ]],[[ + if(0 != ftruncate(0, 0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_ftruncate="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_ftruncate="no" + ]) + fi + # + if test "$tst_compi_ftruncate" = "yes"; then + AC_MSG_CHECKING([if ftruncate usage allowed]) + if test "x$curl_disallow_ftruncate" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_ftruncate="yes" + else + AC_MSG_RESULT([no]) + tst_allow_ftruncate="no" + fi + fi + # + AC_MSG_CHECKING([if ftruncate might be used]) + if test "$tst_links_ftruncate" = "yes" && + test "$tst_proto_ftruncate" = "yes" && + test "$tst_compi_ftruncate" = "yes" && + test "$tst_allow_ftruncate" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_FTRUNCATE, 1, + [Define to 1 if you have the ftruncate function.]) + ac_cv_func_ftruncate="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_ftruncate="no" + fi +]) + + dnl CURL_CHECK_FUNC_GMTIME_R dnl ------------------------------------------------- dnl Verify if gmtime_r is available, prototyped, can @@ -315,6 +421,91 @@ AC_DEFUN([CURL_CHECK_FUNC_SIGACTION], [ ]) +dnl CURL_CHECK_FUNC_STRDUP +dnl ------------------------------------------------- +dnl Verify if strdup is available, prototyped, and +dnl can be compiled. If all of these are true, and +dnl usage has not been previously disallowed with +dnl shell variable curl_disallow_strdup, then +dnl HAVE_STRDUP will be defined. + +AC_DEFUN([CURL_CHECK_FUNC_STRDUP], [ + AC_REQUIRE([CURL_INCLUDES_STRING])dnl + # + tst_links_strdup="unknown" + tst_proto_strdup="unknown" + tst_compi_strdup="unknown" + tst_allow_strdup="unknown" + # + AC_MSG_CHECKING([if strdup can be linked]) + AC_LINK_IFELSE([ + AC_LANG_FUNC_LINK_TRY([strdup]) + ],[ + AC_MSG_RESULT([yes]) + tst_links_strdup="yes" + ],[ + AC_MSG_RESULT([no]) + tst_links_strdup="no" + ]) + # + if test "$tst_links_strdup" = "yes"; then + AC_MSG_CHECKING([if strdup is prototyped]) + AC_EGREP_CPP([strdup],[ + $curl_includes_string + ],[ + AC_MSG_RESULT([yes]) + tst_proto_strdup="yes" + ],[ + AC_MSG_RESULT([no]) + tst_proto_strdup="no" + ]) + fi + # + if test "$tst_proto_strdup" = "yes"; then + AC_MSG_CHECKING([if strdup is compilable]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([[ + $curl_includes_string + ]],[[ + if(0 != strdup(0)) + return 1; + ]]) + ],[ + AC_MSG_RESULT([yes]) + tst_compi_strdup="yes" + ],[ + AC_MSG_RESULT([no]) + tst_compi_strdup="no" + ]) + fi + # + if test "$tst_compi_strdup" = "yes"; then + AC_MSG_CHECKING([if strdup usage allowed]) + if test "x$curl_disallow_strdup" != "xyes"; then + AC_MSG_RESULT([yes]) + tst_allow_strdup="yes" + else + AC_MSG_RESULT([no]) + tst_allow_strdup="no" + fi + fi + # + AC_MSG_CHECKING([if strdup might be used]) + if test "$tst_links_strdup" = "yes" && + test "$tst_proto_strdup" = "yes" && + test "$tst_compi_strdup" = "yes" && + test "$tst_allow_strdup" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED(HAVE_STRDUP, 1, + [Define to 1 if you have the strdup function.]) + ac_cv_func_strdup="yes" + else + AC_MSG_RESULT([no]) + ac_cv_func_strdup="no" + fi +]) + + dnl CURL_CHECK_FUNC_STRTOK_R dnl ------------------------------------------------- dnl Verify if strtok_r is available, prototyped, and |