buildroot/package/php/0002-iconv-tweak-iconv-detection.patch

From 1357df0196806d5697b1f84497ef72aab5faa8a3 Mon Sep 17 00:00:00 2001
From: Gustavo Zacarias <gustavo@zacarias.com.ar>
Date: Tue, 9 Aug 2016 11:50:49 +0200
Subject: [PATCH] iconv: tweak iconv detection

Tweak PHP_SETUP_ICONV from aclocal/build/php.m4 to not
PHP_ADD_INCLUDE $ICONV_DIR/include since the tests use
test instead of AC_TRY_LINK to find headers which is bad,
specially when adding /usr and /usr/local to the mix.
Do basically the same with ext/iconv/config.m4 by tweaking
PHP_ICONV_H_PATH which, again, uses test and absolute paths.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
[Gustavo: convert to nice m4 instead of patching configure]
[Gustavo: update for 5.6.10]
Signed-off-by: Adam Duskett <aduskett@gmail.com>
[aduskett@gmail.com: Update for 7.3.0]
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Bernd: rebased for 7.4.10]
---
 build/php.m4        |  2 +-
 ext/iconv/config.m4 | 22 ----------------------
 2 files changed, 1 insertion(+), 23 deletions(-)

diff --git a/build/php.m4 b/build/php.m4
index 9586c490..8b3d47ed 100644
--- a/build/php.m4
+++ b/build/php.m4
@@ -1965,7 +1965,7 @@ AC_DEFUN([PHP_SETUP_ICONV], [
   dnl Check external libs for iconv funcs.
   if test "$found_iconv" = "no"; then
 
-    for i in $PHP_ICONV /usr/local /usr; do
+    for i in $PHP_ICONV; do
       if test -r $i/include/giconv.h; then
         AC_DEFINE(HAVE_GICONV_H, 1, [ ])
         ICONV_DIR=$i
diff --git a/ext/iconv/config.m4 b/ext/iconv/config.m4
index fe9b47aa..70599694 100644
--- a/ext/iconv/config.m4
+++ b/ext/iconv/config.m4
@@ -13,28 +13,6 @@ if test "$PHP_ICONV" != "no"; then
   ])
 
   if test "$iconv_avail" != "no"; then
-    if test -z "$ICONV_DIR"; then
-      for i in /usr/local /usr; do
-        if test -f "$i/include/iconv.h" || test -f "$i/include/giconv.h"; then
-          PHP_ICONV_PREFIX="$i"
-          break
-        fi
-      done
-      if test -z "$PHP_ICONV_PREFIX"; then
-        PHP_ICONV_PREFIX="/usr"
-      fi
-    else
-      PHP_ICONV_PREFIX="$ICONV_DIR"
-    fi
-
-    CFLAGS="-I$PHP_ICONV_PREFIX/include $CFLAGS"
-    LDFLAGS="-L$PHP_ICONV_PREFIX/$PHP_LIBDIR $LDFLAGS"
-
-    if test -r "$PHP_ICONV_PREFIX/include/giconv.h"; then
-      PHP_ICONV_H_PATH="$PHP_ICONV_PREFIX/include/giconv.h"
-    else
-      PHP_ICONV_H_PATH="$PHP_ICONV_PREFIX/include/iconv.h"
-	fi
 
     AC_MSG_CHECKING([if iconv is glibc's])
     AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <gnu/libc-version.h>]], [[gnu_get_libc_version();]])],[
-- 
2.7.4