From f24b1bfe5560ce77603a49bb797257001ed8ce26 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jackpot51@gmail.com>
Date: Mon, 14 Jan 2019 12:53:14 -0700
Subject: [PATCH] Fix compilation of gcc when using openlibm as system libm
 (#190)

For some sad reason, gcc poisons LONG_DOUBLE in sreal.c. The identifier has been changed to OLM_LONG_DOUBLE.
---
 include/openlibm_math.h | 2 +-
 src/s_fpclassify.c      | 2 +-
 src/s_isfinite.c        | 2 +-
 src/s_isinf.c           | 2 +-
 src/s_isnan.c           | 2 +-
 src/s_isnormal.c        | 2 +-
 src/s_nexttowardf.c     | 2 +-
 src/s_signbit.c         | 2 +-
 8 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/openlibm_math.h b/include/openlibm_math.h
index e17e6ad..732ad00 100644
--- a/include/openlibm_math.h
+++ b/include/openlibm_math.h
@@ -26,7 +26,7 @@
 #endif
 
 #ifndef __arm__
-#define LONG_DOUBLE
+#define OLM_LONG_DOUBLE
 #endif
 
 #ifndef __pure2
diff --git a/src/s_fpclassify.c b/src/s_fpclassify.c
index 558fb55..2b552e1 100644
--- a/src/s_fpclassify.c
+++ b/src/s_fpclassify.c
@@ -72,7 +72,7 @@ __fpclassifyf(float f)
 	}
 }
 
-#ifdef LONG_DOUBLE
+#ifdef OLM_LONG_DOUBLE
 OLM_DLLEXPORT int
 __fpclassifyl(long double e)
 {
diff --git a/src/s_isfinite.c b/src/s_isfinite.c
index 504c2b8..7c11876 100644
--- a/src/s_isfinite.c
+++ b/src/s_isfinite.c
@@ -49,7 +49,7 @@ __isfinitef(float f)
 	return (u.bits.exp != 255);
 }
 
-#ifdef LONG_DOUBLE
+#ifdef OLM_LONG_DOUBLE
 OLM_DLLEXPORT int
 __isfinitel(long double e)
 {
diff --git a/src/s_isinf.c b/src/s_isinf.c
index c013c91..a9bd858 100644
--- a/src/s_isinf.c
+++ b/src/s_isinf.c
@@ -51,7 +51,7 @@ __isinff(float f)
 	return (u.bits.exp == 255 && u.bits.man == 0);
 }
 
-#ifdef LONG_DOUBLE
+#ifdef OLM_LONG_DOUBLE
 OLM_DLLEXPORT int
 __isinfl(long double e)
 {
diff --git a/src/s_isnan.c b/src/s_isnan.c
index b68aa5b..e66bb9a 100644
--- a/src/s_isnan.c
+++ b/src/s_isnan.c
@@ -52,7 +52,7 @@ __isnanf(float f)
 	return (u.bits.exp == 255 && u.bits.man != 0);
 }
 
-#ifdef LONG_DOUBLE
+#ifdef OLM_LONG_DOUBLE
 OLM_DLLEXPORT int
 __isnanl(long double e)
 {
diff --git a/src/s_isnormal.c b/src/s_isnormal.c
index b6f6dd2..3c721d7 100644
--- a/src/s_isnormal.c
+++ b/src/s_isnormal.c
@@ -49,7 +49,7 @@ __isnormalf(float f)
 	return (u.bits.exp != 0 && u.bits.exp != 255);
 }
 
-#ifdef LONG_DOUBLE
+#ifdef OLM_LONG_DOUBLE
 OLM_DLLEXPORT int
 __isnormall(long double e)
 {
diff --git a/src/s_nexttowardf.c b/src/s_nexttowardf.c
index 5676995..bf50862 100644
--- a/src/s_nexttowardf.c
+++ b/src/s_nexttowardf.c
@@ -20,7 +20,7 @@
 
 #define	LDBL_INFNAN_EXP	(LDBL_MAX_EXP * 2 - 1)
 
-#ifdef LONG_DOUBLE
+#ifdef OLM_LONG_DOUBLE
 OLM_DLLEXPORT float
 nexttowardf(float x, long double y)
 {
diff --git a/src/s_signbit.c b/src/s_signbit.c
index 3954c41..87f40f2 100644
--- a/src/s_signbit.c
+++ b/src/s_signbit.c
@@ -49,7 +49,7 @@ __signbitf(float f)
 	return (u.bits.sign);
 }
 
-#ifdef LONG_DOUBLE
+#ifdef OLM_LONG_DOUBLE
 OLM_DLLEXPORT int
 __signbitl(long double e)
 {