fix compilation errors on Debian GNU/Hurd

Apparently on hurd-i386 __GLIBC__ is defined, but the pthread implementation is special and cannot be used with constexpr. Hence exclude __gnu_hurd__.

fix compilation errors on Debian GNU/Hurd
db21d7de · Florian Schlichting · 8454083e · db21d7de · db21d7de
Commit db21d7de authored Oct 31, 2018 by Florian Schlichting
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PosixCond.hxx src/thread/PosixCond.hxx +1 -1

PosixMutex.hxx src/thread/PosixMutex.hxx +1 -1

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--- a/src/thread/PosixCond.hxx
+++ b/src/thread/PosixCond.hxx
@@ -43,7 +43,7 @@ class PosixCond {
 	pthread_cond_t cond;
 public:
-#ifdef __GLIBC__
+#if defined(__GLIBC__) && !defined(__gnu_hurd__)
 	/* optimized constexpr constructor for pthread implementations
 	   that support it */
 	constexpr PosixCond() noexcept:cond(PTHREAD_COND_INITIALIZER) {}

--- a/src/thread/PosixMutex.hxx
+++ b/src/thread/PosixMutex.hxx
@@ -41,7 +41,7 @@ class PosixMutex {
 	pthread_mutex_t mutex;
 public:
-#ifdef __GLIBC__
+#if defined(__GLIBC__) && !defined(__gnu_hurd__)
 	/* optimized constexpr constructor for pthread implementations
 	   that support it */
 	constexpr PosixMutex():mutex(PTHREAD_MUTEX_INITIALIZER) {}