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docs: show --target flag in README Installation section

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The Platform Support table already described the three build targets
but the Installation block still only showed the default invocation.
A reader could see that a windows target existed without knowing how
to actually build it. Adds example --target invocations for portable,
windows, and all, and softens the dependency paragraph since GCC and
libpcap are only required for the native target.
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psycep
2026-04-22 12:03:47 -05:00
parent 362639a77e
commit 4b8ea3361a
1 changed files with 15 additions and 8 deletions
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@@ -10,22 +10,29 @@ A complete Go implementation of [Impacket](https://github.com/fortra/impacket) -
git clone https://github.com/mandiant/gopacket
cd gopacket
# Build and install all tools as gopacket-<toolname> on your PATH
# Default: Linux/macOS build + install to /usr/local/bin
./install.sh
# Or just build without installing
# Run with no flags and it prompts you through the choices interactively.
# Or pick a target directly:
./install.sh --target portable # static Linux binaries in ./dist/portable/
./install.sh --target windows # Windows .exe cross-compiles in ./dist/windows/
./install.sh --target all # build every target in one run
# Build without installing (native only)
./install.sh --build-only
# Or build with make
make build
```
Requires Go 1.24.13+, GCC, and libpcap development headers
(install with `apt install build-essential libpcap-dev` on Debian/Ubuntu/Kali,
or `yum install gcc libpcap-devel` on RHEL/CentOS, or `brew install libpcap` on macOS).
The libpcap headers are only needed by the `sniff` and `split` tools - if
libpcap is missing, `install.sh` will skip those two and build the rest.
The default (`--target native`) build needs Go 1.24.13+, GCC, and libpcap
development headers (`apt install build-essential libpcap-dev` on
Debian/Ubuntu/Kali, `yum install gcc libpcap-devel` on RHEL/CentOS, or
`brew install libpcap` on macOS). The `portable` and `windows` targets only
need the Go toolchain; `sniff` and `split` become stubs in those builds
because they require libpcap. See [Platform Support](#platform-support) for
the full matrix.
### Platform Support