X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=configure.in;h=8256adb7b1158a56ebec0138a0860ac4388b8c31;hp=dc797750267dce5a17aa20070970a0c8872bba41;hb=647e61cc6d9b13dd2799d2302ce9289a1627e36c;hpb=85ecae2875d091e1d9bf541b0e7939cde10eb8cd

diff --git a/configure.in b/configure.in
index dc79775026..8256adb7b1 100644
--- a/configure.in
+++ b/configure.in
@@ -8,13 +8,16 @@ AC_CANONICAL_HOST
 AC_SEARCH_LIBS([ioperm], [ioperm])
 AC_SEARCH_LIBS([dlopen], [dl])
 
+AC_CHECK_HEADERS(elf.h)
+AC_CHECK_HEADERS(ifaddrs.h)
 AC_CHECK_HEADERS(jtag_minidriver.h)
+AC_CHECK_HEADERS(malloc.h)
+AC_CHECK_HEADERS(pthread.h)
+AC_CHECK_HEADERS(stdbool.h)
+AC_CHECK_HEADERS(strings.h)
 AC_CHECK_HEADERS(sys/param.h)
 AC_CHECK_HEADERS(sys/time.h)
 AC_CHECK_HEADERS(sys/select.h)
-AC_CHECK_HEADERS(elf.h)
-AC_CHECK_HEADERS(strings.h)
-AC_CHECK_HEADERS(stdbool.h)
 
 AC_HEADER_TIME
 
@@ -537,7 +540,7 @@ then
    AC_MSG_ERROR([The option: with_ftd2xx_linux_tardir is for LINUX only.])
 fi
 
-if test $build_ft2232_ftd2xx = yes ; then
+if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
 AC_MSG_CHECKING([for ftd2xx.lib exists (win32)])
 
    # if we are given a zipdir...
@@ -586,7 +589,7 @@ then
    AC_MSG_ERROR([The option: with_ftd2xx_linux_tardir is for LINUX only.])
 fi
 
-if test $build_ft2232_ftd2xx = yes ; then
+if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
    AC_MSG_CHECKING([for libftd2xx.a (darwin)])
 
    if test ! -f /usr/local/include/ftd2xx.h ; then
@@ -607,7 +610,7 @@ then
    AC_MSG_ERROR([The option: --with-ftd2xx-win32-zipdir is for win32 only])
 fi
 
-if test $build_ft2232_ftd2xx = yes ; then
+if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
    # Must be linux
    if test $host_os != linux-gnu && test $host_os != linux ; then
       AC_MSG_ERROR([The (linux) ftd2xx library from FTDICHIP.com is linux only. Try --enable-ft2232-libftdi instead])
@@ -661,7 +664,7 @@ if test $build_ft2232_ftd2xx = yes ; then
 fi
 fi
 
-if test $build_ft2232_ftd2xx = yes; then
+if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes; then
 
 # Before we go any further - make sure we can *BUILD* and *RUN*
 # a simple app with the "ftd2xx.lib" file - in what ever form we where given
@@ -781,8 +784,42 @@ AM_CONDITIONAL(BITQ, test $build_bitq = yes)
 
 AC_LANG_C
 AC_PROG_CC
+AC_PROG_CC_C99
 AM_PROG_CC_C_O
 AC_PROG_RANLIB
+AC_PROG_LIBTOOL
+
+# Look for environ alternatives.  Possibility #1: is environ in unistd.h or stdlib.h?
+AC_MSG_CHECKING([for environ in unistd.h and stdlib.h])
+AC_COMPILE_IFELSE([
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <stdlib.h>
+int main(int argc, char **argv) { char **ep = environ; }
+  ], [
+    AC_MSG_RESULT([yes])
+    has_environ=yes
+  ], [
+    AC_MSG_RESULT([no])
+
+    # Possibility #2: can environ be found in an available library?
+    AC_MSG_CHECKING([for extern environ])
+    AC_LINK_IFELSE([
+extern char **environ;
+int main(int argc, char **argv) { char **ep = environ; }
+      ], [
+        AC_DEFINE(NEED_ENVIRON_EXTERN, [1], [Must declare 'environ' to use it.])
+        has_environ=yes
+      ], [
+        has_environ=no
+      ])
+    AC_MSG_RESULT([${has_environ}])
+  ])
+
+if test "${has_environ}" != "yes" ; then
+     AC_MSG_FAILURE([Could not find 'environ' in unistd.h or available libraries.]) 
+fi
+
 
 # set default gcc warnings
 GCC_WARNINGS="-Wall -Wstrict-prototypes -Wformat-security"