[Minios-devel] [UNIKRAFT PATCH] build: Introduce OS macro `__Unikraft__`

[Simon Kuenzer <simon.kuenzer@xxxxxxxxx>]

Similar to other Unix-like OSes (e.g., Linux using `__linux__`,
FreeBSD using `__FreeBSD__`, Minix using `__minix`) we are defining
our own OS macro called `__Unikraft__`. It is handed over to every
build unit. This is done to make porting of libraries easier. This
macro can then be used in configuration sections where one need to
distinguish depending on the target OS.

Signed-off-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
---
 Makefile.uk | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Makefile.uk b/Makefile.uk
index 58b0f1ff..c7a08fb0 100644
--- a/Makefile.uk
+++ b/Makefile.uk
@@ -53,9 +53,15 @@ CFLAGS-$(CONFIG_DEBUG_SYMBOLS_LVL3)       += -g3
 CXXFLAGS-$(CONFIG_DEBUG_SYMBOLS_LVL3)     += -g3
 endif
 
-ASFLAGS  += -DUK_VERSION=$(UK_VERSION).$(UK_SUBVERSION) 
-DUK_FULLVERSION=$(UK_FULLVERSION) -DUK_CODENAME="$(UK_CODENAME)"
-CFLAGS   += -DUK_VERSION=$(UK_VERSION).$(UK_SUBVERSION) 
-DUK_FULLVERSION=$(UK_FULLVERSION) -DUK_CODENAME="$(UK_CODENAME)"
-CXXFLAGS += -DUK_VERSION=$(UK_VERSION).$(UK_SUBVERSION) 
-DUK_FULLVERSION=$(UK_FULLVERSION) -DUK_CODENAME="$(UK_CODENAME)"
+ASFLAGS  += -D __Unikraft__ -DUK_CODENAME="$(UK_CODENAME)"
+ASFLAGS  += -DUK_VERSION=$(UK_VERSION).$(UK_SUBVERSION)
+ASFLAGS  += -DUK_FULLVERSION=$(UK_FULLVERSION)
+CFLAGS   += -D __Unikraft__ -DUK_CODENAME="$(UK_CODENAME)"
+CFLAGS   += -DUK_VERSION=$(UK_VERSION).$(UK_SUBVERSION)
+CFLAGS   += -DUK_FULLVERSION=$(UK_FULLVERSION)
+CXXFLAGS += -D __Unikraft__ -DUK_CODENAME="$(UK_CODENAME)"
+CXXFLAGS += -DUK_VERSION=$(UK_VERSION).$(UK_SUBVERSION)
+CXXFLAGS += -DUK_FULLVERSION=$(UK_FULLVERSION)
 
 # If GCC supports "-no-pie" flag, we will add this flag to link flags to
 # override "pie" option, because some distributions will set
-- 
2.20.1


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