compilation error on VSCODE+PlatformIO+stm32 platform - u_int32_t type definition missing

[EtoTen]

Bellow error is present when compiling in VSCODE + PlatformIO against a STM32 bluepill

.pio\libdeps\bluepill_f103c6\eXoCAN/eXoCAN.h:146:41: error: 'u_int32_t' has not been declared
146 | void filter32Init(int bank, int mode, u_int32_t a, u_int32_t b); //32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN/eXoCAN.h:146:54: error: 'u_int32_t' has not been declared
146 | void filter32Init(int bank, int mode, u_int32_t a, u_int32_t b); //32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN/eXoCAN.h:158:35: error: 'u_int32_t' has not been declared
158 | void filterMask32Init(int bank, u_int32_t id = 0, u_int32_t mask = 0);
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN/eXoCAN.h:158:53: error: 'u_int32_t' has not been declared
158 | void filterMask32Init(int bank, u_int32_t id = 0, u_int32_t mask = 0);
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN/eXoCAN.h:159:35: error: 'u_int32_t' has not been declared
159 | void filterList32Init(int bank, u_int32_t idA = 0, u_int32_t idB = 0); // 32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN/eXoCAN.h:159:54: error: 'u_int32_t' has not been declared
159 | void filterList32Init(int bank, u_int32_t idA = 0, u_int32_t idB = 0); // 32b filters
| ^~~~~~~~~
In file included from .pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.cpp:1:
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.h:146:41: error: 'u_int32_t' has not been declared
146 | void filter32Init(int bank, int mode, u_int32_t a, u_int32_t b); //32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.h:146:54: error: 'u_int32_t' has not been declared
146 | void filter32Init(int bank, int mode, u_int32_t a, u_int32_t b); //32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.h:158:35: error: 'u_int32_t' has not been declared
158 | void filterMask32Init(int bank, u_int32_t id = 0, u_int32_t mask = 0);
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.h:158:53: error: 'u_int32_t' has not been declared
158 | void filterMask32Init(int bank, u_int32_t id = 0, u_int32_t mask = 0);
| ^~~~~~~~~
Compiling .pio\build\bluepill_f103c6\FrameworkArduino\VirtIOSerial.cpp.o
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.h:159:35: error: 'u_int32_t' has not been declared
159 | void filterList32Init(int bank, u_int32_t idA = 0, u_int32_t idB = 0); // 32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.h:159:54: error: 'u_int32_t' has not been declared
159 | void filterList32Init(int bank, u_int32_t idA = 0, u_int32_t idB = 0); // 32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.cpp:129:41: error: 'u_int32_t' has not been declared
129 | void eXoCAN::filterList32Init(int bank, u_int32_t idA, u_int32_t idB) //32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.cpp:129:56: error: 'u_int32_t' has not been declared
129 | void eXoCAN::filterList32Init(int bank, u_int32_t idA, u_int32_t idB) //32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.cpp:135:41: error: 'u_int32_t' has not been declared
135 | void eXoCAN::filterMask32Init(int bank, u_int32_t id, u_int32_t mask) //32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.cpp:135:55: error: 'u_int32_t' has not been declared
135 | void eXoCAN::filterMask32Init(int bank, u_int32_t id, u_int32_t mask) //32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.cpp:140:47: error: 'u_int32_t' has not been declared
140 | void eXoCAN::filter32Init(int bank, int mode, u_int32_t a, u_int32_t b) //32b filters
| ^~~~~~~~~
.pio\libdeps\bluepill_f103c6\eXoCAN\eXoCAN.cpp:140:60: error: 'u_int32_t' has not been declared
140 | void eXoCAN::filter32Init(int bank, int mode, u_int32_t a, u_int32_t b) //32b filters
| ^~~~~~~~~
*** [.pio\build\bluepill_f103c6\src\main.cpp.o] Error 1
*** [.pio\build\bluepill_f103c6\lib89b\eXoCAN\eXoCAN.cpp.o] Error 1