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-rw-r--r--m4/curl-functions.m4191
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