Index: src/OFSystemInfo.m
==================================================================
--- src/OFSystemInfo.m
+++ src/OFSystemInfo.m
@@ -57,15 +57,30 @@
 static OF_INLINE struct cpuid_regs OF_CONST_FUNC
 cpuid(uint32_t eax, uint32_t ecx)
 {
 	struct cpuid_regs regs;
 
-#if defined(OF_X86_64_ASM) || defined(OF_X86_ASM)
+#if defined(OF_X86_64_ASM)
 	__asm__(
 	    "cpuid"
 	    : "=a"(regs.eax), "=b"(regs.ebx), "=c"(regs.ecx), "=d"(regs.edx)
 	    : "a"(eax), "c"(ecx)
+	);
+#elif defined(OF_X86_ASM)
+	/*
+	 * This workaround is required by GCC when using -fPIC, as ebx is a
+	 * special register in PIC code. Yes, GCC is indeed not able to just
+	 * push a register onto the stack before the __asm__ block and to pop
+	 * it afterwards.
+	 */
+	__asm__(
+	    "pushl	%%ebx\n\t"
+	    "cpuid\n\t"
+	    "movl	%%ebx, %1\n\t"
+	    "popl	%%ebx"
+	    : "=a"(regs.eax), "=r"(regs.ebx), "=c"(regs.ecx), "=d"(regs.edx)
+	    : "a"(eax), "c"(ecx)
 	);
 #else
 	regs.eax = regs.ebx = regs.ecx = regs.edx = 0;
 #endif