Don't install floating point related headers, and wrap some previously

  unwrapped prototypes, when float support is disabled.
Also don't install printf.h if glibc custom printf specifier support
  is disabled.

Makefile

@@ -182,6 +182,14 @@ install_dev:
 	install -d $(PREFIX)$(DEVEL_PREFIX)/include
 	-install -m 644 lib/*.[ao] $(PREFIX)$(DEVEL_PREFIX)/lib/
 	tar -chf - include | tar -xf - -C $(PREFIX)$(DEVEL_PREFIX);
+ifneq ($(strip $(UCLIBC_HAS_FLOATS)),y)
+	# Remove floating point related headers since float support is disabled.
+	rm $(PREFIX)$(DEVEL_PREFIX)/include/complex.h
+	rm $(PREFIX)$(DEVEL_PREFIX)/include/fpu_control.h
+	rm $(PREFIX)$(DEVEL_PREFIX)/include/ieee754.h
+	rm $(PREFIX)$(DEVEL_PREFIX)/include/math.h
+	rm $(PREFIX)$(DEVEL_PREFIX)/include/tgmath.h
+endif
 ifneq ($(strip $(UCLIBC_HAS_WCHAR)),y)
 	# Remove wide char headers since wide char support is disabled.
 	rm $(PREFIX)$(DEVEL_PREFIX)/include/wctype.h
@@ -191,6 +199,10 @@ ifneq ($(strip $(UCLIBC_HAS_LOCALE)),y)
 	# Remove iconv header since locale support is disabled.
 	rm $(PREFIX)$(DEVEL_PREFIX)/include/iconv.h
 endif
+ifneq ($(strip $(UCLIBC_HAS_GLIBC_CUSTOM_PRINTF)),y)
+	# Remove printf header since custom print specifier support is disabled.
+	rm $(PREFIX)$(DEVEL_PREFIX)/include/printf.h
+endif
 ifneq ($(strip $(UCLIBC_HAS_XLOCALE)),y)
 	# Remove xlocale header since extended locale support is disabled.
 	rm $(PREFIX)$(DEVEL_PREFIX)/include/xlocale.h

include/time.h

@@ -186,9 +186,11 @@ extern clock_t clock (void) __THROW;
 /* Return the current time and put it in *TIMER if TIMER is not NULL.  */
 extern time_t time (time_t *__timer) __THROW;
 
+#ifdef __UCLIBC_HAS_FLOATS__
 /* Return the difference between TIME1 and TIME0.  */
 extern double difftime (time_t __time1, time_t __time0)
      __THROW __attribute__ ((__const__));
+#endif /* __UCLIBC_HAS_FLOATS__ */
 
 /* Return the `time_t' representation of TP and normalize TP.  */
 extern time_t mktime (struct tm *__tp) __THROW;

include/values.h

@@ -49,6 +49,7 @@
 #define HIBITL		MINLONG
 
 
+#ifdef __UCLIBC_HAS_FLOATS__
 #include <float.h>
 
 #define	MAXDOUBLE	DBL_MAX
@@ -59,6 +60,7 @@
 #define	FMINEXP		FLT_MIN_EXP
 #define	DMAXEXP		DBL_MAX_EXP
 #define	FMAXEXP		FLT_MAX_EXP
+#endif /* __UCLIBC_HAS_FLOATS__ */
 
 
 #ifdef __USE_MISC

include/wchar.h

@@ -394,6 +394,7 @@ extern int wcswidth (__const wchar_t *__s, size_t __n) __THROW;
 
 
 __BEGIN_NAMESPACE_C99
+#ifdef __UCLIBC_HAS_FLOATS__
 /* Convert initial portion of the wide string NPTR to `double'
    representation.  */
 extern double wcstod (__const wchar_t *__restrict __nptr,
@@ -406,6 +407,7 @@ extern float wcstof (__const wchar_t *__restrict __nptr,
 extern long double wcstold (__const wchar_t *__restrict __nptr,
 			    wchar_t **__restrict __endptr) __THROW;
 #endif /* C99 */
+#endif /* __UCLIBC_HAS_FLOATS__ */
 
 
 /* Convert initial portion of wide string NPTR to `long int'
@@ -505,6 +507,7 @@ extern unsigned long long int __wcstoull_l (__const wchar_t *__restrict __nptr,
 					  int __base, __locale_t __loc)
      __THROW;
 
+#ifdef __UCLIBC_HAS_FLOATS__
 extern double wcstod_l (__const wchar_t *__restrict __nptr,
 			wchar_t **__restrict __endptr, __locale_t __loc)
      __THROW;
@@ -525,11 +528,13 @@ extern long double wcstold_l (__const wchar_t *__restrict __nptr,
 extern long double __wcstold_l (__const wchar_t *__restrict __nptr,
 			      wchar_t **__restrict __endptr,
 			      __locale_t __loc) __THROW;
+#endif /* __UCLIBC_HAS_FLOATS__ */
 #endif /* __UCLIBC_HAS_XLOCALE__ */
 #endif /* GNU */
 
 
 #if 0
+#ifdef __UCLIBC_HAS_FLOATS__
 /* The internal entry points for `wcstoX' take an extra flag argument
    saying whether or not to parse locale-dependent number grouping.  */
 extern double __wcstod_internal (__const wchar_t *__restrict __nptr,
@@ -541,6 +546,7 @@ extern float __wcstof_internal (__const wchar_t *__restrict __nptr,
 extern long double __wcstold_internal (__const wchar_t *__restrict __nptr,
 				       wchar_t **__restrict __endptr,
 				       int __group) __THROW;
+#endif /* __UCLIBC_HAS_FLOATS__ */
 
 #ifndef __wcstol_internal_defined
 extern long int __wcstol_internal (__const wchar_t *__restrict __nptr,