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Not possible to remove -fno-rtti from build flags #1712

Henry0191 opened this Issue Jun 28, 2018 · 1 comment


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Henry0191 commented Jun 28, 2018

Operating system:
Windows 10, using Atom with PlatformIO Package.

PlatformIO Version (platformio --version):

Description of problem

I tried every information found in the platformio docs to remove the build flag '-fno-rtti' from the build process, because I want to use the typeid() operator of C++.
However, it seems to compile with the flag every time, regardless of what I do.

Compiler output:

error: cannot use typeid with -fno-rtti

The content of platformio.ini:

platform = espressif8266
board = nodemcuv2
framework = arduino
upload_port = COM11
upload_speed = 921600
build_unflags = -fno-rtti

@ivankravets ivankravets added this to the 3.5.4 milestone Jun 30, 2018

@ivankravets ivankravets added the bug label Jun 30, 2018

ivankravets added a commit that referenced this issue Jun 30, 2018

Merge branch 'hotfix/v3.5.4' into develop
* hotfix/v3.5.4:
  Improve removing of default build flags using `build_unflags` option // Resolve #1712
  Export ``LIBS``, ``LIBPATH``, and ``LINKFLAGS`` data from project dependent libraries to the global build environment
  Replace "env" pattern by "sysenv" in "platformio.ini" // Resolve #1705

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ivankravets commented Jun 30, 2018

Please re-test with pio upgrade --dev.

ivankravets added a commit that referenced this issue Jul 3, 2018

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