From 560b797d79d967a69aa89e2445376d1f555eb18b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D9=85=D9=87=D8=AF=D9=8A=20=D8=B4=D9=8A=D9=86=D9=88=D9=86?=
 =?UTF-8?q?=20=28Mehdi=20Chinoune=29?=
 <79349457+MehdiChinoune@users.noreply.github.com>
Date: Sat, 15 Jun 2024 06:28:42 +0100
Subject: [PATCH] libint-compiler: Fix build on mingw-w64

There are still some remaining issues but they need a more changes to configure.ac and Makefiles
---
 configure.ac             | 3 ---
 src/bin/libint/tactic.cc | 4 ++--
 src/bin/libint/tactic.h  | 9 +++++++--
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/configure.ac b/configure.ac
index 007753e51..df6ed9fce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1269,9 +1269,6 @@ if test "X$have_posix_memalign" != "X0"; then
   LIBINT_ALIGN_SIZE=0
  fi
  AC_DEFINE_UNQUOTED(LIBINT_ALIGN_SIZE, $LIBINT_ALIGN_SIZE)
-else # no posix_memalign = death
- echo "did not find posix_memalign ... this SHOULD NOT happen. Cannot proceed."
- exit 1
 fi
 
 dnl ------------------ Check for support for C++11 standard features --------------
diff --git a/src/bin/libint/tactic.cc b/src/bin/libint/tactic.cc
index 4650d4a63..08dc1b2bb 100644
--- a/src/bin/libint/tactic.cc
+++ b/src/bin/libint/tactic.cc
@@ -109,9 +109,9 @@ RandomChoiceTactic::RR RandomChoiceTactic::optimal_rr(
     const rr_stack& stack) const {
   if (!stack.empty()) {
     unsigned int size = stack.size();
-    unsigned long rand = random();
+    unsigned long rand_ = random();
     const unsigned long range = RAND_MAX;
-    long choice = (long)(rand * size - 1) / range;
+    long choice = (long)(rand_ * size - 1) / range;
     return stack[choice];
   } else
     return RR();
diff --git a/src/bin/libint/tactic.h b/src/bin/libint/tactic.h
index 4cdec983d..e8327a9f1 100644
--- a/src/bin/libint/tactic.h
+++ b/src/bin/libint/tactic.h
@@ -27,6 +27,11 @@
 #ifndef _libint2_src_bin_libint_tactic_h_
 #define _libint2_src_bin_libint_tactic_h_
 
+#ifdef _WIN32
+#define random rand
+#define srandom srand
+#endif
+
 namespace libint2 {
 
 class DirectedGraph;
@@ -208,10 +213,10 @@ class StdRandomizePolicy {
   }
 
   unsigned int noise(unsigned int nrrs) const {
-    unsigned long rand = random();
+    unsigned long rand_ = random();
     const unsigned long range = RAND_MAX;
     const unsigned int result =
-        static_cast<unsigned int>(std::floor(nrrs * scale_ * rand / range));
+        static_cast<unsigned int>(std::floor(nrrs * scale_ * rand_ / range));
     return result;
   }