implicit-function-declaration

[pavlinux]

python setup.py install running install running build running build_ext building 'deep_spectre' extension x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g0 -ggdb0 -Ofast -mtune=native -march=native -mfpmath=sse -fexcess-precision=fast -fno-strict-aliasing --param l2-cache-size=2048 --param l1-cache-line-size=64 --param l1-cache-size=64 -D_FORTIFY_SOURCE=2 -fPIE -pie -fPIC -fstack-protector -Wl,-z,relro -Wl,-z,now -fPIC -I/usr/include/python2.7 -c deep_spectre.c -o build/temp.linux-x86_64-2.7/deep_spectre.o deep_spectre.c: In function 'readMemoryByte': deep_spectre.c:69:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode for (volatile int z = 0; z < 100; z++) {} /* Delay (can also mfence) / ^ deep_spectre.c:69:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code deep_spectre.c:85:23: warning: pointer targets in passing argument 1 of '__rdtscp' differ in signedness [-Wpointer-sign] time1 = __rdtscp( & junk); / READ TIMER */ ^ In file included from /usr/lib/gcc/x86_64-linux-gnu/4.9/include/x86intrin.h:27:0, from deep_spectre.c:8: /usr/lib/gcc/x86_64-linux-gnu/4.9/include/ia32intrin.h:112:1: note: expected 'unsigned int *' but argument is of type 'int *' __rdtscp (unsigned int __A) ^ deep_spectre.c:87:23: warning: pointer targets in passing argument 1 of '__rdtscp' differ in signedness [-Wpointer-sign] time2 = __rdtscp( & junk) - time1; / READ TIMER & COMPUTE ELAPSED TIME */ ^ In file included from /usr/lib/gcc/x86_64-linux-gnu/4.9/include/x86intrin.h:27:0, from deep_spectre.c:8: /usr/lib/gcc/x86_64-linux-gnu/4.9/include/ia32intrin.h:112:1: note: expected 'unsigned int *' but argument is of type 'int *' __rdtscp (unsigned int __A) ^ deep_spectre.c: At top level: deep_spectre.c:145:15: error: variable 'deep_spectre_module' has initializer but incomplete type static struct PyModuleDef deep_spectre_module = { ^ deep_spectre.c:146:5: error: 'PyModuleDef_HEAD_INIT' undeclared here (not in a function) PyModuleDef_HEAD_INIT, ^ deep_spectre.c:146:5: warning: excess elements in struct initializer deep_spectre.c:146:5: warning: (near initialization for 'deep_spectre_module') deep_spectre.c:147:5: warning: excess elements in struct initializer "deep_spectre", / name of module / ^ deep_spectre.c:147:5: warning: (near initialization for 'deep_spectre_module') deep_spectre.c:148:5: warning: excess elements in struct initializer NULL, / module documentation, may be NULL / ^ deep_spectre.c:148:5: warning: (near initialization for 'deep_spectre_module') deep_spectre.c:149:5: warning: excess elements in struct initializer -1, / size of per-interpreter state of the module, ^ deep_spectre.c:149:5: warning: (near initialization for 'deep_spectre_module') deep_spectre.c:152:1: warning: excess elements in struct initializer }; ^ deep_spectre.c:152:1: warning: (near initialization for 'deep_spectre_module') deep_spectre.c: In function 'PyInit_deep_spectre': deep_spectre.c:156:5: warning: implicit declaration of function 'PyModule_Create' [-Wimplicit-function-declaration] return PyModule_Create(&deep_spectre_module); ^ deep_spectre.c:156:5: warning: 'return' with a value, in function returning void error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

[asm]

The first thing I notice is you're attempting to use Python 2. I've only tested this with Python 3. See if switching to 3 fixes the issue. If not, I'm happy to dive into the syntax issues.