[Development] Qt-5.1, qglobal.h and PIC detection

[Thiago Macieira]

On quarta-feira, 6 de novembro de 2013 12:17:56, Christian Gagneraud wrote:
> I'm using CLang build-analize tool, and when I switched from Qt 4.8 to 
> Qt 5.1 (insalled from Qt project's download area), I got a Qt #error, 
> basically the code is built with -fPIC, but CLang doesn't define a PIC 
> macro, so the build fails due to a check in qglobal.h (see details below).

Yes it does.

linux $ diff -U0 <(clang -xc++ -dM -E /dev/null) <(clang -fPIC -xc++ -dM -E 
/dev/null) 
--- /proc/self/fd/11    2013-11-05 15:25:03.872215425 -0800
+++ /proc/self/fd/12    2013-11-05 15:25:03.872215425 -0800
@@ -103,0 +104 @@
+#define __PIC__ 2
@@ -156,0 +158 @@
+#define __pic__ 2

mac $ diff -U0 <(clang -xc++ -dM -E /dev/null) <(clang -fPIC -xc++ -dM -E 
/dev/null) 
--- /dev/fd/11	2013-11-05 15:25:49.000000000 -0800
+++ /dev/fd/12	2013-11-05 15:25:49.000000000 -0800
@@ -90 +90 @@
-#define __PIC__ 1
+#define __PIC__ 2
@@ -143 +143 @@
-#define __pic__ 1
+#define __pic__ 2

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center
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