Adjust testcase for PIE compilers
Adjust testcase for PIE compilers

one some systems GCC defaults to PIC/PIE code which is incompatible
with a unannotated asm call to a function (getenv here).  TCC doesn't
support these PIC annotations (yet), so play some pre-processor games.

avih/tinycc,mirror/tinycc,avih/tinycc,mingodad/tinycc,mingodad/tinycc,mingodad/tinycc,avih/tinycc,mingodad/tinycc,mirror/tinycc,avih/tinycc,mirror/tinycc,mirror/tinycc