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-rw-r--r--doc/source/dev/development_environment.rst3
1 files changed, 1 insertions, 2 deletions
diff --git a/doc/source/dev/development_environment.rst b/doc/source/dev/development_environment.rst
index 9d618cc9f..297502b31 100644
--- a/doc/source/dev/development_environment.rst
+++ b/doc/source/dev/development_environment.rst
@@ -11,8 +11,7 @@ Recommended development setup
Since NumPy contains parts written in C and Cython that need to be
compiled before use, make sure you have the necessary compilers and Python
development headers installed - see :ref:`building-from-source`. Building
-NumPy as of version ``1.17`` requires a C99 compliant compiler. For
-some older compilers this may require ``export CFLAGS='-std=c99'``.
+NumPy as of version ``1.17`` requires a C99 compliant compiler.
Having compiled code also means that importing NumPy from the development
sources needs some additional steps, which are explained below. For the rest