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build: force libwally-core to compile in C99 mode 

Without this gcc 4.8 defaults to an older standard and cannot compile
the code:

```
gcc-4.8 -DHAVE_CONFIG_H -I. -I../../libwally-core/src -I../../libwally-core -I../../libwally-core/src/ccan -DWALLY_CORE_BUILD=1 -Wall -Wextra -Wpedantic -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -Wformat -Wformat-security -Wformat-nonliteral -O0 -ggdb -DBUILD_ELEMENTS=1 -flax-vector-conversions -Wno-unused-function -Wno-long-long -Wno-overlength-strings -Wno-variadic-macros -fvisibility=hidden -g -O2 -MT libwallycore_la-elements.lo -MD -MP -MF .deps/libwallycore_la-elements.Tpo -c ../../libwally-core/src/elements.c -o libwallycore_la-elements.o
../../libwally-core/src/elements.c: In function ‘wally_asset_pak_whitelistproof’:
../../libwally-core/src/elements.c:629:5: error: ‘for’ loop initial declarations are only allowed in C99 mode
     for (size_t i = 0; i < num_keys; ++i) {
     ^
../../libwally-core/src/elements.c:629:5: note: use option -std=c99 or -std=gnu99 to compile your code
```

Changelog-None
This commit is contained in:
Vasil Dimov 2020-03-05 14:32:53 +01:00 committed by neil saitug
parent ac5cba2243
commit 6e86022909
1 changed files with 1 additions and 1 deletions
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2
external/Makefile vendored
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@ -71,7 +71,7 @@ $(TARGET_DIR)/libsecp256k1.% $(TARGET_DIR)/libwallycore.%: $(TARGET_DIR)/libwall
$(TARGET_DIR)/libwally-core-build/src/libwallycore.% $(TARGET_DIR)/libwally-core-build/src/secp256k1/libsecp256k1.%: $(LIBWALLY_HEADERS) $(LIBSECP_HEADERS)
cd external/libwally-core && ./tools/autogen.sh
mkdir -p ${TARGET_DIR}/libwally-core-build
cd ${TARGET_DIR}/libwally-core-build && PYTHON_VERSION=3 ${TOP}/libwally-core/configure CC="$(CC)" --enable-static=yes $(CROSSCOMPILE_OPTS) --enable-module-recovery --enable-elements --enable-shared=no --prefix=/ --libdir=/ --enable-debug && $(MAKE)
cd ${TARGET_DIR}/libwally-core-build && PYTHON_VERSION=3 CFLAGS=-std=c99 ${TOP}/libwally-core/configure CC="$(CC)" --enable-static=yes $(CROSSCOMPILE_OPTS) --enable-module-recovery --enable-elements --enable-shared=no --prefix=/ --libdir=/ --enable-debug && $(MAKE)
external/jsmn/jsmn.h: submodcheck