failed to build

[ghost]

following the instructions on https://dev.px4.io/en/qgc/video_streaming_wifi_broadcast.html i cant seem to get the build successful.

I got an error about sodium.h so i installed libsodium-dev but when trying to make this is the output

cc -c -o fec.o fec.c -Wall -g fec.c:175:31: error: expected ‘;’, ‘,’ or ‘)’ before ‘dst’ _addmul1(register gfrestrict dst, const register gfrestrict src, gf c, size_t sz) { ^ fec.c: In function ‘_invert_mat’: fec.c:250:5: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t i = 0; i < k; i++) ^ fec.c:250:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code fec.c:253:5: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t col = 0; col < k; col++) { ^ fec.c:264:9: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t row = 0; row < k; row++) { ^ fec.c:266:17: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t ix = 0; ix < k; ix++) { ^ fec.c:286:13: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t ix = 0; ix < k; ix++) ^ fec.c:300:13: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t ix = 0; ix < k; ix++) ^ fec.c:313:13: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t ix = 0; ix < k; ix++, p += k) { ^ fec.c:317:21: warning: implicit declaration of function ‘_addmul1’ [-Wimplicit-function-declaration] addmul (p, pivot_row, c, k); ^ fec.c:323:17: error: redefinition of ‘col’ for (size_t col = k; col > 0; col--) ^ fec.c:253:17: note: previous definition of ‘col’ was here for (size_t col = 0; col < k; col++) { ^ fec.c:323:5: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t col = k; col > 0; col--) ^ fec.c:325:13: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t row = 0; row < k; row++) ^ fec.c: At top level: fec.c:499:53: error: expected ‘;’, ‘,’ or ‘)’ before ‘const’ build_decode_matrix_into_space(const fec_trestrict const code, const unsignedconst restrict index, const unsigned k, gfrestrict const matrix) { ^ fec.c: In function ‘fec_decode’: fec.c:519:5: warning: implicit declaration of function ‘build_decode_matrix_into_space’ [-Wimplicit-function-declaration] build_decode_matrix_into_space(code, index, code->k, m_dec); ^ fec.c: At top level: fec.c:236:1: warning: ‘_invert_mat’ defined but not used [-Wunused-function] _invert_mat(gf src, size_t k) { ^ Makefile:8: recipe for target 'fec.o' failed make: *** [fec.o] Error 1

[svpcom]

What toolchain (gcc version, arm or x86) do you use?

[ghost]

trying to compile on a raspberry pi 3

pi@raspberrypi:~ $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabihf/4.9/lto-wrapper Target: arm-linux-gnueabihf Configured with: ../src/configure -v --with-pkgversion='Raspbian 4.9.2-10' --with-bugurl=file:///usr/share/doc/gcc-4.9/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.9 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.9 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libitm --disable-libquadmath --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.9-armhf/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.9-armhf --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.9-armhf --with-arch-directory=arm --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-sjlj-exceptions --with-arch=armv6 --with-fpu=vfp --with-float=hard --enable-checking=release --build=arm-linux-gnueabihf --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf Thread model: posix gcc version 4.9.2 (Raspbian 4.9.2-10)

[svpcom]

@terial Fixed

[svpcom]

@terial Article in PX4 wiki is outdated (I'll fix it later). See https://github.com/svpcom/wifibroadcast/wiki for details