From 8e7ab1b72fdb3e422e7fdc7a1d4ae1e924c0945b Mon Sep 17 00:00:00 2001
From: Antony Dovgal <tony2001@php.net>
Date: Mon, 4 Dec 2006 18:28:34 +0000
Subject: [PATCH] fix build with Sun compiler, which doesn't support -O0

---
 acinclude.m4 | 16 ++++++++++++++++
 configure.in |  8 ++++++--
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/acinclude.m4 b/acinclude.m4
index d941ab7656..efc7ccca0f 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -2574,3 +2574,19 @@ ifelse([$1],[],:,[$1])
 ifelse([$2],[],[AC_MSG_ERROR([Cannot find php_pdo_driver.h.])],[$2])
   fi
 ])
+
+dnl
+dnl PHP_DETECT_ICC
+dnl
+AC_DEFUN([PHP_DETECT_ICC],
+[
+  ICC="no"
+  AC_MSG_CHECKING([for icc])
+  AC_EGREP_CPP([^__INTEL_COMPILER], [__INTEL_COMPILER],
+    ICC="no"
+    AC_MSG_RESULT([no]),
+    ICC="yes"
+    AC_MSG_RESULT([yes])
+  )
+])
+
diff --git a/configure.in b/configure.in
index 837732560a..f6032c780b 100644
--- a/configure.in
+++ b/configure.in
@@ -120,6 +120,7 @@ dnl Checks for programs.
 dnl -------------------------------------------------------------------------
 
 AC_PROG_CC
+PHP_DETECT_ICC
 AC_PROG_CC_C_O
 dnl Change to AC_PROG_CC_STDC when we start requiring a post-2.13 autoconf
 dnl AC_PROG_CC_STDC
@@ -684,8 +685,11 @@ if test "$PHP_DEBUG" = "yes"; then
   CFLAGS=`echo "$CFLAGS" | $SED -e 's/-O[0-9]*//g'`
   CXXFLAGS=`echo "$CXXFLAGS" | $SED -e 's/-O[0-9]*//g'`
   changequote([,])
-  CFLAGS="$CFLAGS -O0"
-  CXXFLAGS="$CXXFLAGS -O0"
+  dnl add -O0 only if GCC or ICC is used
+  if test "$GCC" = "yes" || test "$ICC" = "yes"; then
+    CFLAGS="$CFLAGS -O0"
+    CXXFLAGS="$CXXFLAGS -O0"
+  fi
 else
   PHP_DEBUG=0
   ZEND_DEBUG=no
-- 
2.40.0