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-rw-r--r--src/target/firmware/include/stdint.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/target/firmware/include/stdint.h b/src/target/firmware/include/stdint.h
new file mode 100644
index 0000000..627403f
--- /dev/null
+++ b/src/target/firmware/include/stdint.h
@@ -0,0 +1,36 @@
+#ifndef OSMO_STDINT_H
+#define OSMO_STDINT_H
+
+/* some older toolchains (like gnuarm-3.x) don't provide a C99
+ compliant stdint.h yet, so we define our own here */
+
+/* to make matters worse newer gcc with glibc headers have
+ a incompatible definition of these types. We will use the
+ gcc'ism of #include_next to include the compiler's libc
+ header file and then check if it has defined int8_t and
+ if not we will use our own typedefs */
+
+/* another bad criteria. We can not detect __NEWLIB_H__ or
+ _NEWLIB_VERSION. Assume that older GCCs have a older C library
+ that did not include a stdint.h yet. This is for gnuarm-3.x
+ one of the compilers producing working code right now. */
+
+#if __GNUC__ > 3
+#include_next <stdint.h>
+#endif
+
+#ifndef __int8_t_defined
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+
+typedef signed short int16_t;
+typedef unsigned short uint16_t;
+
+typedef signed int int32_t;
+typedef unsigned int uint32_t;
+
+typedef long long int int64_t;
+typedef unsigned long long int uint64_t;
+#endif
+
+#endif