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Diffstat (limited to 'libc/stdio/Makefile')
-rw-r--r--libc/stdio/Makefile13
1 files changed, 11 insertions, 2 deletions
diff --git a/libc/stdio/Makefile b/libc/stdio/Makefile
index 3801fce2c..2ad7cd737 100644
--- a/libc/stdio/Makefile
+++ b/libc/stdio/Makefile
@@ -24,6 +24,15 @@ TOPDIR=../
include $(TOPDIR)Rules.mak
LIBC=$(TOPDIR)libc.a
+PRINTF_FLAGS =
+
+ifeq ($(HAS_FLOATS),true)
+ PRINTF_FLAGS += -DWANT_DOUBLE
+endif
+
+ifeq ($(HAS_LONG_LONG),true)
+ PRINTF_FLAGS += -DWANT_LONG_LONG
+endif
MSRC=stdio.c
MOBJ=_stdio_init.o fputc.o fgetc.o fflush.o fgets.o gets.o fputs.o \
@@ -32,7 +41,7 @@ MOBJ=_stdio_init.o fputc.o fgetc.o fflush.o fgets.o gets.o fputs.o \
MSRC2=printf.c
MOBJ2=printf.o sprintf.o fprintf.o vprintf.o vsprintf.o vfprintf.o snprintf.o \
- vsnprintf.o asprintf.o vfnprintf.o
+ vsnprintf.o asprintf.o vfnprintf.o fnprintf.o
MSRC3=scanf.c
MOBJ3=scanf.o sscanf.o fscanf.o vscanf.o vsscanf.o vfscanf.o
@@ -54,7 +63,7 @@ $(MOBJ): $(MSRC)
$(STRIPTOOL) -x -R .note -R .comment $*.o
$(MOBJ2): $(MSRC2)
- $(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
+ $(CC) $(CFLAGS) $(PRINTF_FLAGS) -DL_$* $< -c -o $*.o
$(STRIPTOOL) -x -R .note -R .comment $*.o
$(MOBJ3): $(MSRC3)