# Qpchi

Enable precompiled header coexistence to reduce build time.

## Syntax

Linux: | None

macOS: | None

Windows: | /Qpchi /Qpchi-

## Arguments

None

## Default

ON | The compiler enables precompiled header coexistence.

## Description

This option enables precompiled header (PCH) files generated by the Intel® C++ compiler and those generated by the Microsoft Visual C++* compiler to coexist, which reduces build time.

If build time is not an issue and you do not want an additional set of PCH files on your system, specify /Qpchi-.

## IDE Equivalent

None

## Alternate Options

None

Parent topic: Output, Debug, and Precompiled Header Options