Can't compile Minimal from platformio

[fermuch]

Hello!

I'm trying to load the library from platformio, but I get the following error:

Linking .pio/build/esp32doit-devkit-v1/firmware.elf
.pio/build/esp32doit-devkit-v1/src/main.ino.cpp.o:(.literal._Z5setupv+0x2c): undefined reference to `mDashInit'
.pio/build/esp32doit-devkit-v1/src/main.ino.cpp.o: In function `setup()':
/home/fermuch/Documentos/Dev/Work/AYVU/test-esp32/src/main.ino:26: undefined reference to `mDashInit'
collect2: error: ld returned 1 exit status
*** [.pio/build/esp32doit-devkit-v1/firmware.elf] Error 1

The sketch is the following:

#define MDASH_APP_NAME "MinimalApp"
#include <mDash.h>

#include <WiFi.h>

#define WIFI_NETWORK "MyWifiNetworkName"
#define WIFI_PASSWORD "MyWifiPassword"
#define DEVICE_PASSWORD "mDashDeviceToken"

void setup() {
  Serial.begin(115200);
  WiFi.begin(WIFI_NETWORK, WIFI_PASSWORD);
  mDashBegin(DEVICE_PASSWORD);
}

void loop() {
  delay(100);
}

And finally this is the platformio.ini file:

[env:esp32doit-devkit-v1]
platform = espressif32
board = esp32doit-devkit-v1
framework = arduino
lib_deps =
  https://github.com/cesanta/mDash.git

(It also doesn't work if I use a release instead of pulling from git)

[fermuch]

Seems like the lib is not auto-loaded. Adding the following to platformio.ini solves the problem:

build_flags = -L.pio/libdeps/esp32doit-devkit-v1/mDash/src/esp32/ -llibmDash

[RobinsonLaw]

also didn't work

[cpq]

Please see #8

[yeckel]

Just tested it with newest version of libraries and just the solution:
build_flags = -L.pio/libdeps/<name of the lib>/mDash/src/esp32/ -llibmDash
works. The solution by @cpq does not althoug the PR he is mentioning is already there.

[sandikodev]

right, adding
build_flags = -L.pio/libdeps/esp32doit-devkit-v1/mDash/src/esp32/ -llibmDash

works like a charm

platformio.ini

[env:esp32doit-devkit-v1]
platform = espressif32
board = esp32doit-devkit-v1
framework = arduino
build_flags = -L.pio/libdeps/esp32doit-devkit-v1/mDash/src/esp32/ -llibmDash
lib_deps = cesanta/mDash@^1.2.14

pio run -e esp32doit-devkit-v1

Processing esp32doit-devkit-v1 (platform: espressif32; board: esp32doit-devkit-v1; framework: arduino)
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32doit-devkit-v1.html
PLATFORM: Espressif 32 (3.1.0) > DOIT ESP32 DEVKIT V1
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
DEBUG: Current (esp-prog) External (esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
PACKAGES: 
 - framework-arduinoespressif32 3.10005.210308 (1.0.5) 
 - tool-esptoolpy 1.30000.201119 (3.0.0) 
 - toolchain-xtensa32 2.50200.97 (5.2.0)
Converting main.ino
LDF: Library Dependency Finder -> http://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 29 compatible libraries
Scanning dependencies...
Dependency Graph
|-- <mDash> 1.2.14
|-- <WiFi> 1.0
Building in release mode
Compiling .pio/build/esp32doit-devkit-v1/src/main.ino.cpp.o
Generating partitions .pio/build/esp32doit-devkit-v1/partitions.bin
Archiving .pio/build/esp32doit-devkit-v1/lib24b/libmDash.a
Indexing .pio/build/esp32doit-devkit-v1/lib24b/libmDash.a
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/ETH.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/WiFi.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/WiFiAP.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/WiFiClient.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/WiFiGeneric.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/WiFiMulti.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/WiFiSTA.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/WiFiScan.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/WiFiServer.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/lib0a0/WiFi/WiFiUdp.cpp.o
Archiving .pio/build/esp32doit-devkit-v1/libFrameworkArduinoVariant.a
Indexing .pio/build/esp32doit-devkit-v1/libFrameworkArduinoVariant.a
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/Esp.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/FunctionalInterrupt.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/HardwareSerial.cpp.o
Archiving .pio/build/esp32doit-devkit-v1/lib0a0/libWiFi.a
Indexing .pio/build/esp32doit-devkit-v1/lib0a0/libWiFi.a
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/IPAddress.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/IPv6Address.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/MD5Builder.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/Print.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/Stream.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/StreamString.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/WMath.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/WString.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/base64.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/cbuf.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-adc.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-bt.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-cpu.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-dac.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-gpio.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-i2c.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-ledc.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-log.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-matrix.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-misc.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-psram.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-rmt.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-sigmadelta.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-spi.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-time.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-timer.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-touch.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/esp32-hal-uart.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/libb64/cdecode.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/libb64/cencode.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/main.cpp.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/stdlib_noniso.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/wiring_pulse.c.o
Compiling .pio/build/esp32doit-devkit-v1/FrameworkArduino/wiring_shift.c.o
Archiving .pio/build/esp32doit-devkit-v1/libFrameworkArduino.a
Indexing .pio/build/esp32doit-devkit-v1/libFrameworkArduino.a
Linking .pio/build/esp32doit-devkit-v1/firmware.elf
Building .pio/build/esp32doit-devkit-v1/firmware.bin
Retrieving maximum program size .pio/build/esp32doit-devkit-v1/firmware.elf
Checking size .pio/build/esp32doit-devkit-v1/firmware.elf
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
RAM:   [=         ]  11.9% (used 39108 bytes from 327680 bytes)
Flash: [=======   ]  66.7% (used 874798 bytes from 1310720 bytes)
esptool.py v3.0
=================================================================== [SUCCESS] Took 24.54 seconds ===================================================================