Xmlto: FIx implicit int

[Casinius]

newer compiler doesnot allow implicit int
such as "static name"

[gemini-code-assist]

Summary of Changes

Hello @Casinius, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request resolves build failures of the xmlto package that occur with modern compilers. It achieves this by introducing explicit type declarations for previously implicit int types within the xmlif/xmlif.l source file, ensuring compatibility and successful compilation in contemporary development environments.

Highlights

• Fixing Implicit Int Declarations: Addressed compilation errors with newer compilers by explicitly declaring int types for the ifsense variable and the main function's return type in xmlif/xmlif.l.
• Build Process Modification: Integrated io.replace commands into the xmake.lua build script for xmlto to automatically apply these type fixes during installation.

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[gemini-code-assist]

Code Review

The pull request addresses an issue where newer compilers do not allow implicit int declarations in the xmlto package. The changes explicitly declare the type of the ifsense variable and the return type of the main function in xmlif/xmlif.l. This ensures compatibility with stricter compilers.

[gemini-code-assist]

The original code main(int argc, char *argv[]) uses an implicit int return type, which is not allowed by newer compilers. Explicitly declaring the return type as int main(int argc, char *argv[]) resolves this issue.

Suggestion: Always specify the return type of the main function.

io.replace("xmlif/xmlif.l",[[main(int argc, char *argv[])]],[[int main(int argc, char *argv[])]],{plain = true})

[gemini-code-assist]

The original code static ifsense; uses an implicit int declaration, which is not allowed by newer compilers. Explicitly declaring the variable as static int ifsense; resolves this issue.

Suggestion: Use explicit type declaration for variables.

io.replace("xmlif/xmlif.l",[[static ifsense;]],[[static int ifsense;]],{plain = true})