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diff -urN postgresql-7.4.1.orig/src/include/port/linux.h postgresql-7.4.1/src/include/port/linux.h
--- postgresql-7.4.1.orig/src/include/port/linux.h 2003-10-26 01:41:10.000000000 +0000
+++ postgresql-7.4.1/src/include/port/linux.h 2004-01-09 20:22:50.000000000 +0000
@@ -3,6 +3,11 @@
#define HAS_TEST_AND_SET
+#elif defined(__hppa__)
+typedef struct { int sema[4]; } slock_t;
+
+#define HAS_TEST_AND_SET
+
#elif defined(__sparc__)
typedef unsigned char slock_t;
diff -urN postgresql-7.4.1.orig/src/include/storage/s_lock.h postgresql-7.4.1/src/include/storage/s_lock.h
--- postgresql-7.4.1.orig/src/include/storage/s_lock.h 2003-11-04 09:43:56.000000000 +0000
+++ postgresql-7.4.1/src/include/storage/s_lock.h 2004-01-09 20:12:15.000000000 +0000
@@ -112,6 +112,33 @@
#endif /* __i386__ || __x86_64__ */
+#if defined(__hppa__) || defined(__hppa)
+#define TAS(lock) tas(lock)
+
+#define __ldcw(a) ({ \
+ unsigned int __ret; \
+ __asm__ __volatile__("ldcw 0(%2),%0" \
+ : "=r" (__ret), "=m" (*(a)) : "r" (a)); \
+ __ret; \
+})
+
+#define __PA_LDCW_ALIGNMENT 16
+#define __ldcw_align(a) ({ \
+ volatile unsigned int __ret = (unsigned int) a; \
+ if ((__ret & ~(__PA_LDCW_ALIGNMENT - 1)) < (unsigned int) a) \
+ __ret = (__ret & ~(__PA_LDCW_ALIGNMENT - 1)) + __PA_LDCW_ALIGNMENT; \
+ (unsigned int *) __ret; \
+})
+
+static __inline__ int
+tas(volatile slock_t *lock)
+{
+ volatile unsigned int *a = __ldcw_align (lock);
+ return (__ldcw(a) == 0);
+}
+
+#endif /* __hppa__ || __hppa */
+
/* Intel Itanium */
#if defined(__ia64__) || defined(__ia64)
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